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Forest Ranger Complete Preparation Guide & Solved Questions (2026) - Apex Rankers
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2324 Total
Questions
~3486 mins Read
Time
4 Subject Areas
Q. 1
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
Which silvicultural system removes the mature stand in partial cuttings over years to regenerate under shelter?
A
Selection system
B
Clear felling system
C
Coppice system
D
Shelterwood system
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
Shelterwood cutting shelters young seedlings under residual canopy.
Q. 2
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
Vegetative sprouting of trees from dormant buds on the cut stump is termed:
A
Pruning
B
Layering
C
Coppicing
✓ Correct
D
Pollarding
💡
Step-by-Step Explanation & Concept Rationale
Coppicing regenerates woody stands without replanting seeds.
Q. 3
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
Which species is predominantly planted in irrigated plantations of Punjab (e.g. Changa Manga)?
A
Eucalyptus only
B
Conifers
C
Dalbergia sissoo (Shisham) and Morus alba (Mulberry)
✓ Correct
D
Mangroves
💡
Step-by-Step Explanation & Concept Rationale
Historic plantations in Punjab were engineered with Shisham and Mulberry.
Q. 4
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
The artificial removal of lower branches to produce clear knot-free timber is:
A
Thinning
B
Pruning
✓ Correct
C
Lopping
D
Girdling
💡
Step-by-Step Explanation & Concept Rationale
Pruning ensures knot-free dimensional lumber.
Q. 5
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
A cleaning operation in an immature sapling stand aims to:
A
Clear all ground cover
B
Eliminate undesirable competing weed trees
✓ Correct
C
Extract resin
D
Harvest mature timber
💡
Step-by-Step Explanation & Concept Rationale
Cleaning releases desirable crop trees from inferior competitors.
Q. 6
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
In professional practice: Which silvicultural system removes the mature stand in partial cuttings over years to regenerate under shelter?
A
Clear felling system
B
Coppice system
C
Shelterwood system
✓ Correct
D
Selection system
💡
Step-by-Step Explanation & Concept Rationale
Shelterwood cutting shelters young seedlings under residual canopy.
Q. 7
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
In professional practice: Vegetative sprouting of trees from dormant buds on the cut stump is termed:
A
Layering
B
Pruning
C
Pollarding
D
Coppicing
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
Coppicing regenerates woody stands without replanting seeds.
Q. 8
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
In professional practice: Which species is predominantly planted in irrigated plantations of Punjab (e.g. Changa Manga)?
A
Eucalyptus only
B
Conifers
C
Mangroves
D
Dalbergia sissoo (Shisham) and Morus alba (Mulberry)
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
Historic plantations in Punjab were engineered with Shisham and Mulberry.
Q. 9
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
In professional practice: The artificial removal of lower branches to produce clear knot-free timber is:
A
Girdling
B
Thinning
C
Pruning
✓ Correct
D
Lopping
💡
Step-by-Step Explanation & Concept Rationale
Pruning ensures knot-free dimensional lumber.
Q. 10
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
In professional practice: A cleaning operation in an immature sapling stand aims to:
A
Harvest mature timber
B
Extract resin
C
Eliminate undesirable competing weed trees
✓ Correct
D
Clear all ground cover
💡
Step-by-Step Explanation & Concept Rationale
Cleaning releases desirable crop trees from inferior competitors.
Q. 11
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
According to standard examination standards: Which silvicultural system removes the mature stand in partial cuttings over years to regenerate under shelter?
A
Coppice system
B
Shelterwood system
✓ Correct
C
Clear felling system
D
Selection system
💡
Step-by-Step Explanation & Concept Rationale
Shelterwood cutting shelters young seedlings under residual canopy.
Q. 12
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
According to standard examination standards: Vegetative sprouting of trees from dormant buds on the cut stump is termed:
A
Layering
B
Pruning
C
Coppicing
✓ Correct
D
Pollarding
💡
Step-by-Step Explanation & Concept Rationale
Coppicing regenerates woody stands without replanting seeds.
Q. 13
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
According to standard examination standards: Which species is predominantly planted in irrigated plantations of Punjab (e.g. Changa Manga)?
A
Eucalyptus only
B
Mangroves
C
Conifers
D
Dalbergia sissoo (Shisham) and Morus alba (Mulberry)
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
Historic plantations in Punjab were engineered with Shisham and Mulberry.
Q. 14
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
According to standard examination standards: The artificial removal of lower branches to produce clear knot-free timber is:
A
Pruning
✓ Correct
B
Lopping
C
Girdling
D
Thinning
💡
Step-by-Step Explanation & Concept Rationale
Pruning ensures knot-free dimensional lumber.
Q. 15
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
According to standard examination standards: A cleaning operation in an immature sapling stand aims to:
A
Clear all ground cover
B
Harvest mature timber
C
Extract resin
D
Eliminate undesirable competing weed trees
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
Cleaning releases desirable crop trees from inferior competitors.
Q. 16
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
From an applied perspective: Which silvicultural system removes the mature stand in partial cuttings over years to regenerate under shelter?
A
Clear felling system
B
Coppice system
C
Selection system
D
Shelterwood system
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
Shelterwood cutting shelters young seedlings under residual canopy.
Q. 17
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
From an applied perspective: Vegetative sprouting of trees from dormant buds on the cut stump is termed:
A
Layering
B
Pruning
C
Pollarding
D
Coppicing
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
Coppicing regenerates woody stands without replanting seeds.
Q. 18
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
From an applied perspective: Which species is predominantly planted in irrigated plantations of Punjab (e.g. Changa Manga)?
A
Dalbergia sissoo (Shisham) and Morus alba (Mulberry)
✓ Correct
B
Mangroves
C
Eucalyptus only
D
Conifers
💡
Step-by-Step Explanation & Concept Rationale
Historic plantations in Punjab were engineered with Shisham and Mulberry.
Q. 19
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
From an applied perspective: The artificial removal of lower branches to produce clear knot-free timber is:
A
Pruning
✓ Correct
B
Lopping
C
Girdling
D
Thinning
💡
Step-by-Step Explanation & Concept Rationale
Pruning ensures knot-free dimensional lumber.
Q. 20
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
From an applied perspective: A cleaning operation in an immature sapling stand aims to:
A
Eliminate undesirable competing weed trees
✓ Correct
B
Clear all ground cover
C
Harvest mature timber
D
Extract resin
💡
Step-by-Step Explanation & Concept Rationale
Cleaning releases desirable crop trees from inferior competitors.
Q. 21
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
Under standard operational protocols: Which silvicultural system removes the mature stand in partial cuttings over years to regenerate under shelter?
A
Coppice system
B
Shelterwood system
✓ Correct
C
Selection system
D
Clear felling system
💡
Step-by-Step Explanation & Concept Rationale
Shelterwood cutting shelters young seedlings under residual canopy.
Q. 22
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
Under standard operational protocols: Vegetative sprouting of trees from dormant buds on the cut stump is termed:
A
Layering
B
Coppicing
✓ Correct
C
Pruning
D
Pollarding
💡
Step-by-Step Explanation & Concept Rationale
Coppicing regenerates woody stands without replanting seeds.
Q. 23
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
Under standard operational protocols: Which species is predominantly planted in irrigated plantations of Punjab (e.g. Changa Manga)?
A
Eucalyptus only
B
Dalbergia sissoo (Shisham) and Morus alba (Mulberry)
✓ Correct
C
Mangroves
D
Conifers
💡
Step-by-Step Explanation & Concept Rationale
Historic plantations in Punjab were engineered with Shisham and Mulberry.
Q. 24
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
Under standard operational protocols: The artificial removal of lower branches to produce clear knot-free timber is:
A
Pruning
✓ Correct
B
Girdling
C
Thinning
D
Lopping
💡
Step-by-Step Explanation & Concept Rationale
Pruning ensures knot-free dimensional lumber.
Q. 25
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
Under standard operational protocols: A cleaning operation in an immature sapling stand aims to:
A
Clear all ground cover
B
Harvest mature timber
C
Extract resin
D
Eliminate undesirable competing weed trees
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
Cleaning releases desirable crop trees from inferior competitors.
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All 500 Solved Questions in Forestry, Wildlife & Range Management Loaded!
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Q. 1
Environmental Sciences
Difficulty: Easy
(1 Mark)
The Pakistan Environmental Protection Act (PEPA) was enacted in which year?
A
1983
B
1997
✓ Correct
C
2000
D
2010
💡
Step-by-Step Explanation & Concept Rationale
The Pakistan Environmental Protection Act was passed by the Parliament and received the assent of the President in December 1997, replacing the earlier Environmental Protection Ordinance of 1983.
Q. 2
Environmental Sciences
Difficulty: Medium
(1 Mark)
Under Section 3 of the Pakistan Environmental Protection Act 1997, who is the Chairperson of the Pakistan Environmental Protection Council (PEPC)?
A
The Chief Justice of Pakistan
B
The Prime Minister of Pakistan (or an individual nominated by the PM)
✓ Correct
C
The Director General of Pak-EPA
D
The Minister for Climate Change exclusively
💡
Step-by-Step Explanation & Concept Rationale
Under Section 3(1) of PEPA 1997, the Pakistan Environmental Protection Council is the apex environmental policy body, chaired by the Prime Minister or such other person as the Prime Minister may nominate.
Q. 3
Environmental Sciences
Difficulty: Medium
(1 Mark)
Who serves as the ex-officio Secretary of the Pakistan Environmental Protection Council (PEPC)?
A
Secretary of the Ministry dealing with the subject of Environment / Climate Change
✓ Correct
B
Director General of Pak-EPA
C
Attorney General for Pakistan
D
Chairman WAPDA
💡
Step-by-Step Explanation & Concept Rationale
Under Section 3(4) of PEPA 1997, the Secretary to the Government of Pakistan in charge of the Ministry dealing with Environment serves as the Secretary of the Council.
Q. 4
Environmental Sciences
Difficulty: Hard
(1 Mark)
How often is the Pakistan Environmental Protection Council (PEPC) statutorily required to meet under Section 3(6) of PEPA 1997?
A
At least once a month
B
At least once every six months
C
At least once in a year
✓ Correct
D
At least once every two years
💡
Step-by-Step Explanation & Concept Rationale
Section 3(6) of PEPA 1997 mandates that the Council shall meet at least once in a year.
Q. 5
Environmental Sciences
Difficulty: Easy
(1 Mark)
Under Section 5 of PEPA 1997, who is the administrative and operational head of the Pakistan Environmental Protection Agency (Pak-EPA)?
A
Inspector General of Forests
B
Director General (DG)
✓ Correct
C
Environmental Magistrate
D
Chairman Senate
💡
Step-by-Step Explanation & Concept Rationale
Section 5(2) of PEPA 1997 provides that the Federal Agency (Pak-EPA) shall be headed by a Director General appointed by the Federal Government.
Q. 6
Environmental Sciences
Difficulty: Medium
(1 Mark)
Which section of PEPA 1997 strictly prohibits the discharge or emission of any effluent or waste in excess of the National Environmental Quality Standards (NEQS)?
A
Section 6
B
Section 11
✓ Correct
C
Section 15
D
Section 25
💡
Step-by-Step Explanation & Concept Rationale
Section 11(1) of PEPA 1997 mandates: 'Subject to the provisions of this Act and the rules and regulations made thereunder no person shall discharge or emit or allow the discharge or emission of any effluent or waste or air pollutant or noise in an amount, concentration or level which is in excess of the National Environmental Quality Standards'.
Q. 7
Environmental Sciences
Difficulty: Easy
(1 Mark)
Which section of PEPA 1997 requires project proponents to file an Initial Environmental Examination (IEE) or Environmental Impact Assessment (EIA) before commencing construction?
A
Section 11
B
Section 12
✓ Correct
C
Section 14
D
Section 18
💡
Step-by-Step Explanation & Concept Rationale
Section 12(1) of PEPA 1997 states that no proponent of a project shall commence construction or operation unless they have filed with the Agency an IEE or, where the project is likely to cause an adverse environmental effect, an EIA, and obtained approval.
Q. 8
Environmental Sciences
Difficulty: Hard
(1 Mark)
Under Section 12(2) of PEPA 1997, what is the statutory time limit within which the Agency must review and communicate its decision on an IEE/EIA approval?
A
30 days
B
60 days
C
Four months (120 days)
✓ Correct
D
One year
💡
Step-by-Step Explanation & Concept Rationale
Section 12(2) stipulates: 'The Federal Agency shall review the initial environmental examination and accord its approval, or require submission of an environmental impact assessment... or approve the environmental impact assessment... within a period of four months'.
Q. 9
Environmental Sciences
Difficulty: Medium
(1 Mark)
Which section of PEPA 1997 completely prohibits the import of hazardous waste into Pakistan and its territorial waters?
A
Section 10
B
Section 13
✓ Correct
C
Section 17
D
Section 21
💡
Step-by-Step Explanation & Concept Rationale
Section 13 of PEPA 1997 explicitly states: 'No person shall import or cause to be imported for disposal, or generate, transit or dispose of, any hazardous waste into Pakistan and its territorial waters and Exclusive Economic Zone'.
Q. 10
Environmental Sciences
Difficulty: Medium
(1 Mark)
Under Section 14 of PEPA 1997, what is required for any person to handle hazardous substances?
A
A license issued by the Federal Agency or an authority under applicable laws
✓ Correct
B
Only verbal permission from the local police
C
Payment of sales tax
D
Approval from the Ministry of Tourism
💡
Step-by-Step Explanation & Concept Rationale
Section 14 mandates that no person shall generate, collect, consign, transport, treat, dispose of, store, handle, or import any hazardous substance except under a license issued by the Federal Agency.
Q. 11
Environmental Sciences
Difficulty: Medium
(1 Mark)
What is an 'Environmental Protection Order' (EPO) issued under Section 16 of PEPA 1997?
A
An order directing a person or industrial facility to cease, stop, or modify operations or take remedial measures to prevent environmental harm
✓ Correct
B
A court order to demolish residential houses
C
An order establishing a national park
D
A trade tariff on imported oil
💡
Step-by-Step Explanation & Concept Rationale
Under Section 16, where the Director General is satisfied that the discharge of pollutants is in violation of the Act, he may issue an Environmental Protection Order directing the offender to take immediate remedial steps or cease operations.
Q. 12
Environmental Sciences
Difficulty: Easy
(1 Mark)
Under Section 20 of PEPA 1997, who establishes Environmental Tribunals in Pakistan?
A
Federal Government
✓ Correct
B
Supreme Court Bar Association
C
United Nations Environment Programme
D
Chamber of Commerce
💡
Step-by-Step Explanation & Concept Rationale
Section 20(1) empowers the Federal Government to establish as many Environmental Tribunals as it considers necessary, specifying the territorial limits for each.
Q. 13
Environmental Sciences
Difficulty: Hard
(1 Mark)
What are the legal qualifications required for the appointment of the Chairperson of an Environmental Tribunal under Section 20(2) of PEPA 1997?
A
A person who is, or has been, or is qualified to be, a Judge of a High Court
✓ Correct
B
Any retired civil servant of BS-20
C
A professor of Environmental Science
D
An environmental NGO activist
💡
Step-by-Step Explanation & Concept Rationale
Section 20(2)(a) specifies that the Chairperson of an Environmental Tribunal must be a person who is, or has been, or is qualified to be, a Judge of a High Court.
Q. 14
Environmental Sciences
Difficulty: Hard
(1 Mark)
How many Members constitute an Environmental Tribunal under Section 20 of PEPA 1997?
A
A Chairperson and two Members (at least one being a technical expert in the field of environment)
✓ Correct
B
A Chairperson and five Members
C
Only one Judge sitting alone
D
Twelve jury members
💡
Step-by-Step Explanation & Concept Rationale
An Environmental Tribunal consists of a Chairperson and two Members appointed by the Federal Government, of whom at least one must be a technical member with suitable qualifications in environmental science.
Q. 15
Environmental Sciences
Difficulty: Medium
(1 Mark)
Within how many days can an appeal be filed before the High Court against a final decision or order of an Environmental Tribunal under Section 23 of PEPA 1997?
A
15 days
B
30 days
✓ Correct
C
60 days
D
90 days
💡
Step-by-Step Explanation & Concept Rationale
Section 23 of PEPA 1997 provides that any person aggrieved by any decision or order of the Environmental Tribunal may prefer an appeal to the High Court within thirty days of the date of communication of the order.
Q. 16
Environmental Sciences
Difficulty: Medium
(1 Mark)
Under Section 24 of PEPA 1997, who is empowered to try minor environmental offenses punishable with fine under the Act?
A
Environmental Magistrates (Judicial Magistrates of the First Class specially empowered by the High Court)
✓ Correct
B
Traffic Police Officers
C
Local Union Council Chairmen
D
Municipal Sanitary Inspectors
💡
Step-by-Step Explanation & Concept Rationale
Section 24 provides for the appointment of Environmental Magistrates, being Judicial Magistrates of the first class specially empowered in this behalf by the High Court.
Q. 17
Environmental Sciences
Difficulty: Easy
(1 Mark)
What major constitutional amendment in Pakistan devolved the subject of 'Environmental pollution and ecology' to the provinces in 2010?
A
17th Amendment
B
18th Constitutional Amendment
✓ Correct
C
19th Amendment
D
21st Amendment
💡
Step-by-Step Explanation & Concept Rationale
The 18th Constitutional Amendment (April 2010) abolished the Concurrent Legislative List, devolving environment and ecology to the provinces. Pak-EPA retains jurisdiction over Islamabad Capital Territory and federal territories/installations.
Q. 18
Environmental Sciences
Difficulty: Easy
(1 Mark)
Which federal ministry currently houses the Pakistan Environmental Protection Agency (Pak-EPA)?
A
Ministry of Climate Change and Environmental Coordination
✓ Correct
B
Ministry of Industries and Production
C
Ministry of Energy
D
Ministry of Science and Technology
💡
Step-by-Step Explanation & Concept Rationale
Pak-EPA operates under the administrative control of the Federal Ministry of Climate Change and Environmental Coordination.
Q. 19
Environmental Sciences
Difficulty: Medium
(1 Mark)
Under the Pak-EPA (Review of IEE and EIA) Regulations 2000, projects listed under which Schedule require an Initial Environmental Examination (IEE)?
A
Schedule I
✓ Correct
B
Schedule II
C
Schedule III
D
Schedule IV
💡
Step-by-Step Explanation & Concept Rationale
Under the Pak-EPA Review of IEE and EIA Regulations 2000, projects listed in Schedule I require an IEE, whereas larger or more sensitive projects in Schedule II require a full EIA.
Q. 20
Environmental Sciences
Difficulty: Easy
(1 Mark)
Which of the following projects falls under Schedule II of the IEE/EIA Regulations 2000, strictly requiring a full Environmental Impact Assessment (EIA)?
A
A small rural poultry farm with 500 birds
B
Thermal power generation plants with capacity exceeding 200 MW, major dams, and nuclear power plants
✓ Correct
C
Repair of a local rural primary school
D
Installation of household solar panels
💡
Step-by-Step Explanation & Concept Rationale
Schedule II encompasses major infrastructure projects with significant potential environmental footprints, such as major thermal/hydro/nuclear power plants, oil refineries, and large expressways.
Q. 21
Environmental Sciences
Difficulty: Hard
(1 Mark)
What is the validity period of an environmental approval (NOC) granted by Pak-EPA for commencement of construction under Regulation 13 of the IEE/EIA Regulations 2000?
A
1 year
B
3 years from the date of issue (extendable on application)
✓ Correct
C
10 years
D
Permanent without expiration
💡
Step-by-Step Explanation & Concept Rationale
Under Regulation 13(1), the approval remains valid for commencement of construction for a period of three years from the date of issue.
Q. 22
Environmental Sciences
Difficulty: Medium
(1 Mark)
Under the IEE/EIA Regulations 2000, what is mandatory before the Agency can approve a full Environmental Impact Assessment (EIA)?
A
A Public Hearing published in national newspapers at least 30 days prior
✓ Correct
B
Approval by the United Nations
C
Secret voting by factory workers
D
Zero public involvement
💡
Step-by-Step Explanation & Concept Rationale
Public participation through an advertised Public Hearing (notice published in English and Urdu national dailies giving at least 30 days notice) is a mandatory statutory requirement for EIA review.
Q. 23
Environmental Sciences
Difficulty: Medium
(1 Mark)
Under Section 10 of PEPA 1997, what fund was created to provide financial assistance for environmental projects and pollution abatement?
A
Provincial Revenue Fund
B
Pakistan Environmental Protection (Sustainable Development) Fund
✓ Correct
C
Industrial Subsidy Fund
D
Petroleum Development Fund
💡
Step-by-Step Explanation & Concept Rationale
Section 10 established the Provincial and Federal Sustainable Development Funds to support pollution abatement, environmental conservation, and research.
Q. 24
Environmental Sciences
Difficulty: Hard
(1 Mark)
Under Section 17 of PEPA 1997, what maximum fine can be imposed by the Environmental Tribunal for non-compliance with Section 11 (NEQS violation) or Section 12 (EIA violation)?
A
Up to Rs. 10,000
B
Up to Rs. 1,000,000 (one million rupees), with additional fine up to Rs. 100,000 for every day the violation continues
✓ Correct
C
Up to Rs. 50,000
D
Strictly imprisonment with no fine
💡
Step-by-Step Explanation & Concept Rationale
Under Section 17(1), whoever contravenes the provisions of section 11, 12, 13, or 16 is punishable with a fine which may extend to one million rupees, and in case of continuing contravention, an additional fine up to one hundred thousand rupees per day.
Q. 25
Environmental Sciences
Difficulty: Easy
(1 Mark)
What is the 'Polluter Pays Principle' recognized in modern environmental jurisprudence and applied in Pakistan?
A
The government pays for all industrial waste disposal
B
The polluting party must bear the full cost of preventing, controlling, and repairing the environmental damage caused by their pollution
✓ Correct
C
Polluters are immune from paying any taxes
D
Consumers pay a pollution surcharge on groceries
💡
Step-by-Step Explanation & Concept Rationale
The Polluter Pays Principle mandates that the enterprise responsible for causing pollution must internalize and pay for environmental cleanup, restoration, and compensation to victims.
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All 400 Solved Questions in Environmental Sciences Loaded!
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Q. 1
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
The primary carbon-fixing enzyme in C3 photosynthetic Calvin cycle is:
A
ATP synthase
B
PEP carboxylase
C
Amylase
D
RuBisCO (Ribulose-1,5-bisphosphate carboxylase-oxygenase)
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
RuBisCO fixes atmospheric CO2 onto RuBP to yield two molecules of 3-PGA.
Q. 2
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
In C4 plants (e.g. Maize, Sugarcane), initial CO2 fixation occurs in mesophyll cells catalyzed by:
A
Hexokinase
B
RuBisCO
C
PEP Carboxylase (yielding Oxaloacetate)
✓ Correct
D
Carbonic anhydrase
💡
Step-by-Step Explanation & Concept Rationale
PEP carboxylase lacks oxygenase activity, preventing wasteful photorespiration.
Q. 3
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
Which plant hormone is primarily responsible for apical dominance and phototropism?
A
Cytokinin
B
Auxin (Indole-3-acetic acid, IAA)
✓ Correct
C
Gibberellin
D
Abscisic acid
💡
Step-by-Step Explanation & Concept Rationale
Polar basipetal auxin transport from the apical shoot tip inhibits axillary lateral buds.
Q. 4
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
The stress hormone responsible for stomatal closure during drought is:
A
Ethylene
B
Auxin
C
Gibberellin
D
Abscisic Acid (ABA)
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
ABA triggers rapid efflux of potassium and anions from guard cells, causing loss of turgor.
Q. 5
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
Water moves upward in tall trees primarily driven by the mechanism of:
A
Transpiration Pull and Cohesion-Tension Theory
✓ Correct
B
Active root pumping
C
Capillarity alone
D
Atmospheric pressure only
💡
Step-by-Step Explanation & Concept Rationale
Dixon and Joly's cohesion theory explains continuous water column pull under negative tension.
Q. 6
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
In professional practice: The primary carbon-fixing enzyme in C3 photosynthetic Calvin cycle is:
A
RuBisCO (Ribulose-1,5-bisphosphate carboxylase-oxygenase)
✓ Correct
B
Amylase
C
ATP synthase
D
PEP carboxylase
💡
Step-by-Step Explanation & Concept Rationale
RuBisCO fixes atmospheric CO2 onto RuBP to yield two molecules of 3-PGA.
Q. 7
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
In professional practice: In C4 plants (e.g. Maize, Sugarcane), initial CO2 fixation occurs in mesophyll cells catalyzed by:
A
Hexokinase
B
Carbonic anhydrase
C
RuBisCO
D
PEP Carboxylase (yielding Oxaloacetate)
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
PEP carboxylase lacks oxygenase activity, preventing wasteful photorespiration.
Q. 8
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
In professional practice: Which plant hormone is primarily responsible for apical dominance and phototropism?
A
Gibberellin
B
Cytokinin
C
Abscisic acid
D
Auxin (Indole-3-acetic acid, IAA)
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
Polar basipetal auxin transport from the apical shoot tip inhibits axillary lateral buds.
Q. 9
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
In professional practice: The stress hormone responsible for stomatal closure during drought is:
A
Abscisic Acid (ABA)
✓ Correct
B
Gibberellin
C
Ethylene
D
Auxin
💡
Step-by-Step Explanation & Concept Rationale
ABA triggers rapid efflux of potassium and anions from guard cells, causing loss of turgor.
Q. 10
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
In professional practice: Water moves upward in tall trees primarily driven by the mechanism of:
A
Active root pumping
B
Transpiration Pull and Cohesion-Tension Theory
✓ Correct
C
Capillarity alone
D
Atmospheric pressure only
💡
Step-by-Step Explanation & Concept Rationale
Dixon and Joly's cohesion theory explains continuous water column pull under negative tension.
Q. 11
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
According to standard examination standards: The primary carbon-fixing enzyme in C3 photosynthetic Calvin cycle is:
A
Amylase
B
ATP synthase
C
RuBisCO (Ribulose-1,5-bisphosphate carboxylase-oxygenase)
✓ Correct
D
PEP carboxylase
💡
Step-by-Step Explanation & Concept Rationale
RuBisCO fixes atmospheric CO2 onto RuBP to yield two molecules of 3-PGA.
Q. 12
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
According to standard examination standards: In C4 plants (e.g. Maize, Sugarcane), initial CO2 fixation occurs in mesophyll cells catalyzed by:
A
Hexokinase
B
Carbonic anhydrase
C
PEP Carboxylase (yielding Oxaloacetate)
✓ Correct
D
RuBisCO
💡
Step-by-Step Explanation & Concept Rationale
PEP carboxylase lacks oxygenase activity, preventing wasteful photorespiration.
Q. 13
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
According to standard examination standards: Which plant hormone is primarily responsible for apical dominance and phototropism?
A
Gibberellin
B
Auxin (Indole-3-acetic acid, IAA)
✓ Correct
C
Abscisic acid
D
Cytokinin
💡
Step-by-Step Explanation & Concept Rationale
Polar basipetal auxin transport from the apical shoot tip inhibits axillary lateral buds.
Q. 14
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
According to standard examination standards: The stress hormone responsible for stomatal closure during drought is:
A
Auxin
B
Abscisic Acid (ABA)
✓ Correct
C
Ethylene
D
Gibberellin
💡
Step-by-Step Explanation & Concept Rationale
ABA triggers rapid efflux of potassium and anions from guard cells, causing loss of turgor.
Q. 15
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
According to standard examination standards: Water moves upward in tall trees primarily driven by the mechanism of:
A
Atmospheric pressure only
B
Capillarity alone
C
Transpiration Pull and Cohesion-Tension Theory
✓ Correct
D
Active root pumping
💡
Step-by-Step Explanation & Concept Rationale
Dixon and Joly's cohesion theory explains continuous water column pull under negative tension.
Q. 16
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
From an applied perspective: The primary carbon-fixing enzyme in C3 photosynthetic Calvin cycle is:
A
Amylase
B
PEP carboxylase
C
RuBisCO (Ribulose-1,5-bisphosphate carboxylase-oxygenase)
✓ Correct
D
ATP synthase
💡
Step-by-Step Explanation & Concept Rationale
RuBisCO fixes atmospheric CO2 onto RuBP to yield two molecules of 3-PGA.
Q. 17
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
From an applied perspective: In C4 plants (e.g. Maize, Sugarcane), initial CO2 fixation occurs in mesophyll cells catalyzed by:
A
RuBisCO
B
Carbonic anhydrase
C
PEP Carboxylase (yielding Oxaloacetate)
✓ Correct
D
Hexokinase
💡
Step-by-Step Explanation & Concept Rationale
PEP carboxylase lacks oxygenase activity, preventing wasteful photorespiration.
Q. 18
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
From an applied perspective: Which plant hormone is primarily responsible for apical dominance and phototropism?
A
Auxin (Indole-3-acetic acid, IAA)
✓ Correct
B
Cytokinin
C
Gibberellin
D
Abscisic acid
💡
Step-by-Step Explanation & Concept Rationale
Polar basipetal auxin transport from the apical shoot tip inhibits axillary lateral buds.
Q. 19
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
From an applied perspective: The stress hormone responsible for stomatal closure during drought is:
A
Auxin
B
Gibberellin
C
Abscisic Acid (ABA)
✓ Correct
D
Ethylene
💡
Step-by-Step Explanation & Concept Rationale
ABA triggers rapid efflux of potassium and anions from guard cells, causing loss of turgor.
Q. 20
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
From an applied perspective: Water moves upward in tall trees primarily driven by the mechanism of:
A
Active root pumping
B
Atmospheric pressure only
C
Capillarity alone
D
Transpiration Pull and Cohesion-Tension Theory
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
Dixon and Joly's cohesion theory explains continuous water column pull under negative tension.
Q. 21
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
Under standard operational protocols: The primary carbon-fixing enzyme in C3 photosynthetic Calvin cycle is:
A
PEP carboxylase
B
Amylase
C
RuBisCO (Ribulose-1,5-bisphosphate carboxylase-oxygenase)
✓ Correct
D
ATP synthase
💡
Step-by-Step Explanation & Concept Rationale
RuBisCO fixes atmospheric CO2 onto RuBP to yield two molecules of 3-PGA.
Q. 22
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
Under standard operational protocols: In C4 plants (e.g. Maize, Sugarcane), initial CO2 fixation occurs in mesophyll cells catalyzed by:
A
Hexokinase
B
Carbonic anhydrase
C
RuBisCO
D
PEP Carboxylase (yielding Oxaloacetate)
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
PEP carboxylase lacks oxygenase activity, preventing wasteful photorespiration.
Q. 23
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
Under standard operational protocols: Which plant hormone is primarily responsible for apical dominance and phototropism?
A
Auxin (Indole-3-acetic acid, IAA)
✓ Correct
B
Gibberellin
C
Abscisic acid
D
Cytokinin
💡
Step-by-Step Explanation & Concept Rationale
Polar basipetal auxin transport from the apical shoot tip inhibits axillary lateral buds.
Q. 24
MULTIPLE_CHOICE
Difficulty: EASY
(1 Mark)
Under standard operational protocols: The stress hormone responsible for stomatal closure during drought is:
A
Gibberellin
B
Ethylene
C
Auxin
D
Abscisic Acid (ABA)
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
ABA triggers rapid efflux of potassium and anions from guard cells, causing loss of turgor.
Q. 25
MULTIPLE_CHOICE
Difficulty: MEDIUM
(1 Mark)
Under standard operational protocols: Water moves upward in tall trees primarily driven by the mechanism of:
A
Transpiration Pull and Cohesion-Tension Theory
✓ Correct
B
Active root pumping
C
Capillarity alone
D
Atmospheric pressure only
💡
Step-by-Step Explanation & Concept Rationale
Dixon and Joly's cohesion theory explains continuous water column pull under negative tension.
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Q. 1
General Knowledge
Difficulty: Easy
(1 Mark)
What is H_5 N_1?
A
Virus
✓ Correct
B
Bacteria
C
Vaccine
D
Fungi
💡
Step-by-Step Explanation & Concept Rationale
H_5 N_1 is a highly infectious subtype of the Influenza A virus that primarily affects birds but can infect humans.
Q. 2
General Knowledge
Difficulty: Easy
(1 Mark)
Which of the following Russian's oil and gas company, which provides oil and gas to European countries?
A
BSGO Company
B
Gazprome Company
✓ Correct
C
Gestapo Company
D
Nindo Oil and Gas Company
💡
Step-by-Step Explanation & Concept Rationale
Gazprom is a majority state-owned multinational energy corporation and the largest supplier of natural gas to Europe.
Q. 3
General Knowledge
Difficulty: Medium
(1 Mark)
Which one of the following planets has the maximum number of satellites?
A
Jupiter
B
Saturn
✓ Correct
C
Venus
D
Uranus
💡
Step-by-Step Explanation & Concept Rationale
While Jupiter was historically cited, Saturn is recognized in the source as having the highest number of documented moons at the time.
Q. 4
General Knowledge
Difficulty: Easy
(1 Mark)
Which is the largest planet?
A
Venus
B
Earth
C
Jupiter
✓ Correct
D
Mars
💡
Step-by-Step Explanation & Concept Rationale
Jupiter is the fifth planet from the Sun and the largest planet in our solar system by both mass and volume.
Q. 5
General Knowledge
Difficulty: Easy
(1 Mark)
What was the main reason of disqualification of Arial Sharon for office of Prime Minister of Israel?
A
He completed two terms
B
He was impeached
C
Due to Illness
✓ Correct
D
None of these
💡
Step-by-Step Explanation & Concept Rationale
Ariel Sharon was incapacitated by a massive stroke in early 2006, which led to his permanent inability to perform his duties.
Q. 6
General Knowledge
Difficulty: Medium
(1 Mark)
Which of the following vessels of blood carry blood from different parts of the body to heart?
A
Veins
✓ Correct
B
Arteries
C
Capillaries
D
Vessels
💡
Step-by-Step Explanation & Concept Rationale
Veins are the blood vessels responsible for transporting deoxygenated blood from various body tissues back to the heart.
Q. 7
General Knowledge
Difficulty: Medium
(1 Mark)
What are the two seas linked by Suez Canal?
A
The Mediterranean Sea and Baltic Sea
B
The Mediterranean Sea and Red Sea
✓ Correct
C
The Black Sea and Baltic Sea
D
The Black Sea and South China Sea
💡
Step-by-Step Explanation & Concept Rationale
The Suez Canal is an artificial sea-level waterway in Egypt that connects the Mediterranean Sea to the Red Sea.
Q. 8
General Knowledge
Difficulty: Easy
(1 Mark)
Diego Garcia is a:
A
A famous airline of Singapore
B
French surface to Sea Missile
C
United States military base in Indian Ocean
✓ Correct
D
The disputed island between Russia and Japan
💡
Step-by-Step Explanation & Concept Rationale
Diego Garcia is an atoll in the central Indian Ocean that hosts a major strategic military facility for the United States.
Q. 9
General Knowledge
Difficulty: Easy
(1 Mark)
In which year European rulers captured Palestine from the Muslims in Crusade War?
A
1095 A.D
B
1099 A.D
✓ Correct
C
1115 A.D
D
1199 A.D
💡
Step-by-Step Explanation & Concept Rationale
The First Crusade culminated in the Siege of Jerusalem in 1099 A.D., when European forces captured the city.
Q. 10
General Knowledge
Difficulty: Easy
(1 Mark)
What is Kremlin?
A
Offices of Russian Government
✓ Correct
B
Offices of Sri Lankan Government
C
Building in Japan used for theater
D
None of these
💡
Step-by-Step Explanation & Concept Rationale
The Kremlin is a fortified complex in the heart of Moscow that serves as the official residence of the Russian President.
Q. 11
General Knowledge
Difficulty: Medium
(1 Mark)
A mass of ice originating in mountains in snowfields above the snowline is called:
A
Mountain River
B
Glaciers
✓ Correct
C
Lakes and water falls
D
None of the above
💡
Step-by-Step Explanation & Concept Rationale
Glaciers are large, persistent bodies of ice that form where the accumulation of snow exceeds its ablation over many years.
Q. 12
General Knowledge
Difficulty: Medium
(1 Mark)
What is the diameter of earth?
A
11756 km
B
12756 km
✓ Correct
C
13756 km
D
14756 km
💡
Step-by-Step Explanation & Concept Rationale
The equatorial diameter of the Earth is approximately 12,756 kilometers, reflecting its slightly oblate shape.
Q. 13
General Knowledge
Difficulty: Easy
(1 Mark)
What is the freezing point of heavy water?
A
3.82 $^o$ C
✓ Correct
B
2.82 $^o$ C
C
1.82 $^o$ C
D
0.82 $^o$ C
💡
Step-by-Step Explanation & Concept Rationale
Heavy water (deuterium oxide) has a higher freezing point than normal water, occurring at approximately 3.82 degrees Celsius.
Q. 14
General Knowledge
Difficulty: Medium
(1 Mark)
How many satellites (moons) of Saturn planet?
A
36
B
56
✓ Correct
C
27
D
23
💡
Step-by-Step Explanation & Concept Rationale
This number reflects the count of Saturn's moons documented at the time the original source material was compiled.
Q. 15
General Knowledge
Difficulty: Easy
(1 Mark)
Which of the following died of natural death:
A
Indira Gandhi
B
Mahatma Gandhi
C
Rajiv Gandhi
D
None of the above
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
Indira Gandhi, Mahatma Gandhi, and Rajiv Gandhi were all victims of assassination rather than dying of natural causes.
Q. 16
General Knowledge
Difficulty: Easy
(1 Mark)
Head Office of UNESCO is located at:
A
Paris
✓ Correct
B
Geneva
C
London
D
Washington
💡
Step-by-Step Explanation & Concept Rationale
UNESCO is headquartered in Paris, France, where it coordinates international cooperation in education, science, and culture.
Q. 17
General Knowledge
Difficulty: Medium
(1 Mark)
What is the main cause of earthquakes?
A
Volcanic activities
B
Tectonic plate's movement
✓ Correct
C
Tectonic dislocation
D
All of above
💡
Step-by-Step Explanation & Concept Rationale
Most earthquakes are caused by the sudden release of energy along faults in the Earth's crust due to tectonic plate movements.
Q. 18
General Knowledge
Difficulty: Easy
(1 Mark)
'Digital divide' term is related with:
A
Economics
B
Socio economic difference technology era
✓ Correct
C
Political Science
D
Journalism
💡
Step-by-Step Explanation & Concept Rationale
The digital divide refers to the gap between demographics and regions that have access to modern information technology and those that don't.
Q. 19
General Knowledge
Difficulty: Easy
(1 Mark)
What is Ivy League?
A
A Group of Eight University in USA
✓ Correct
B
A Group of People in Switzerland
C
A Football League tournament
D
A Group of Islands in Atlantic Ocean
💡
Step-by-Step Explanation & Concept Rationale
The Ivy League is an American collegiate athletic conference comprising eight private research universities in the Northeastern United States.
Q. 20
General Knowledge
Difficulty: Medium
(1 Mark)
"Every action has reaction which are equal but in opposite direction". The law is called:
A
Newton's first law of motion
B
Newton's second law of motion
C
Newton's third law of motion
✓ Correct
D
None of these
💡
Step-by-Step Explanation & Concept Rationale
Newton's third law states that for every action force, there is an equal and opposite reaction force.
Q. 21
General Knowledge
Difficulty: Easy
(1 Mark)
Pure water can be obtained from seawater by the process of:
A
Filtration
B
Distillation
✓ Correct
C
Evaporation
D
None of these
💡
Step-by-Step Explanation & Concept Rationale
Distillation involves boiling seawater to create steam and then condensing it into pure liquid water, leaving salts behind.
Q. 22
General Knowledge
Difficulty: Easy
(1 Mark)
Common salt is obtained from seawater by:
A
Sublimation
B
Evaporation
✓ Correct
C
Crystallisation
D
Filtration
💡
Step-by-Step Explanation & Concept Rationale
Seawater is collected in shallow ponds where solar heat causes the water to evaporate, leaving behind salt crystals.
Q. 23
General Knowledge
Difficulty: Easy
(1 Mark)
Gasoline is obtained from crude oil by the process of:
A
Evaporation
B
Fractional Distillation
✓ Correct
C
Distillation
D
Filtration
💡
Step-by-Step Explanation & Concept Rationale
Fractional distillation separates crude oil into different components, like gasoline, based on their different boiling points.
Q. 24
General Knowledge
Difficulty: Easy
(1 Mark)
An electric kettle used for boiling hard water has a white scale deposited on its heating element. This consists of:
A
Sugar
B
Common Salt
C
Carbonates of Calcium and Magnesium
✓ Correct
D
Sodium Carbonate
💡
Step-by-Step Explanation & Concept Rationale
Limescale is primarily composed of calcium and magnesium carbonates that precipitate out of hard water when heated.
Q. 25
General Knowledge
Difficulty: Easy
(1 Mark)
Washing soda is:
A
Sodium Chloride
B
Hydrated Sodium Carbonate
✓ Correct
C
Sodium Carbonate
D
Calcium Carbonate
💡
Step-by-Step Explanation & Concept Rationale
Washing soda is the chemical compound sodium carbonate decahydrate, commonly used as a water softener.
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