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Question Bank

Question for AP SET Environmental Science - Quiz / Questions / MCQ in English

Last Update on : October 11, 2026

Duration: 120 · Questions: 100 · Max Marks: 200

View AP SET (Environmental Science) 2026 Exam Page

To boost your performance in AP SET Environmental Science exam, practice each question regularly and with focus. Every question tests your subject understanding, so solve them one at a time. Taking a quiz improves your speed and accuracy. Practicing topic-wise MCQs. Students benefit greatly from reviewing questions with answer keys, which help clarify concepts and strengthen Questions knowledge for success in AP SET Environmental Science exams.

Latest AP SET Environmental Science Exam Question (Objective Questions), MCQ in English

Subjects : Environmental Science

Question Bank AP SET Environmental Science Exam - English

Environmental Science

Q 1 :
Assertion (A) Biosphere constitutes an excellent life- support system which is sustainable and can fulfill all human needs .
Reason (R): The size and productivity of  the biosphere is limited availability of water, nutrients and environmental conditions .Identify the correct code:
  1. A.Both (a) and (r) are true and (r) is the correct explanation of (a)
  2. B.Both (a) and (r) are true, but (r) is not the correct explanation of (a).
  3. C.(a) is true but (r) is false.
  4. D.(a) is false but (r) is true .
Q 2 :
Geostrophic wind occurs when pressure gradient force balances
  1. A.Coriolis force
  2. B.Fricitonal force
  3. C.Centrpetal force
  4. D.Coriolis and frictional force together
Q 3 :
Scales of Meteorolgy  are  in the following adersatring from the least
  1. A.Macro -, Micro-, Meso
  2. B.Macro -, Meso -,Micro
  3. C.Meso -, Macro -, Micro
  4. D.Micro -, Meso-, Macro
Q 4 :
When the full potential of physical , chemical and biological factors, a species can use if there is no competition , it is called
  1. A.Fundamental niche
  2. B.Ecological niche
  3. C.Realized niche
  4. D.Competitive exclusion
Q 5 :
The uppermost zone of atmosphere of earth, where shortwave ultraviolet radiations are absorbed, is
  1. A.Troposphere
  2. B.Stratosphere
  3. C.Mesosphere 
  4. D.Thermosphere
Q 6 :
Which of the following oxides of nitrogen is the major air pollutant  released from automobile exhausts ?
  1. A.NO
  2. B.N20
  3. C.NO2
  4. D.N2O3
Q 7 :
Match List-1 with List-II which contains pollutant gases and their threshold (safe limit) values as per WHO standerds:
    List-I                                                   List-II
 (Pollutant gas)                               (Thersholds)
a. CO                                        (i)  2 ppm
b. SO2                                       (ii) 50 ppm
c. NO                                       (iii} 0.08ppm
d. PAN                                     {iv} 25 ppm
Identity the correct code :
  1. A.(a)       (b)      (c)       (d)
    (ii)       (iii)      (i)        (iv)
  2. B.(iv)      (ii)      (i)          (iii)
  3. C.(ii)      (i)       (iv)        (iii)
  4. D.(iii)     (iv)     (ii)        (i)
Q 8 :
The band labeled as UV-C  which is lethal to micro-organisms is
  1. A.
    0.29-V 0.32μm
  2. B.
    0.2-V  0.29μm
  3. C.
    0.17-V 0.2μm
  4. D.
    0.07-V 0.21μm
Q 9 :
Which of  the following species in the atmosphere is called atmospheric detergent?
  1. A.
    Chlorine radical
  2. B.
    Hydroxyl radical
  3. C.
    Methyl radical
  4. D.
    Ozone radical
Q 10 :
Thep OH of a 0.001 M solution of HCI is
  1. A.12
  2. B.10
  3. C.11
  4. D.13
Q 11 :
Assertion (A) : Every country should integrate the principles of sustainable development into its policies and programmes.
Reason (R) :Environmental resources are a nation’s wealth
Chooes the correctcode from the following
  1. A.Both (A) and (R) are  true and (R) is the correct explanation of (A).
  2. B.Both (A) and (R)  are true ,but (R) is not the correct explanation of (A).
  3. C.(A) is true but (R) is false.
  4. D.(A) is false but (R) is true
Q 12 :
wind rose represents statistical distribution of.
  1. A.wind velocity in vector from
  2. B.wind speeds in scalar from
  3. C.wind speeds in π diagram
  4. D.wind speeds in the from of histograms
Q 13 :
In the redox  reaction given below , which one of  the substrates in forward reaction is oxidezed?
2Fe3+ + H2→ 2Fe2+ + 2H+
  1. A.
    Fe3+
  2. B.
    H2
  3. C.
    H+ 
  4. D.
    Fe2+ans
Q 14 :
If soil in a given area is wetted and allowed to drain till percolation is stopped , the amount of water thus retained is called
  1. A.
    storage capacity
  2. B.
    Capillary capacity
  3. C.
    Hygroscopic capacity
  4. D.
    Field capacity
Q 15 :
Quantity of 5M HCI required for preparing 1000 ml of  0.1 M HCI is
  1. A.
    20 ml
  2. B.
    2ml
  3. C.
    200ml
  4. D.
    100ml 
Q 16 :
The  method which can be used for the softening of water having high calcium , high magnesium – carbonate hardness and some non- carbonate hardness
  1. A.
    single-stage lime process.
  2. B.
    excess line process.
  3. C.
    single stage lime- soda ash  process.
  4. D.
    excess lime- soda ash process
Q 17 :
Spotted deer , Asiatic wild ass , Black buck are,
  1. A.
    Endangered species
  2. B.
    Vulnerable species
  3. C.
    Threatened species
  4. D.
    key species
Q 18 :
Specific mortality of members of a population is expressed by
  1. A.
    Life table
  2. B.
    Survivorship curve
  3. C.
    Rate of mortality
  4. D.
    Rate of fecundity
Q 19 :
which group of vertebrate comprises maximum  number of endangered species ?
  1. A.
    Fish
  2. B.
    Amphibia
  3. C.
    Reptiles
  4. D.
    Birds
Q 20 :
Under anaerobic condition denitrifying pseudomonas changes,
  1. A.
    Nitrate to molecular nitrogen
  2. B.
    Nitrate to ammonia
  3. C.
    Nitrate to Nitrite
  4. D.
    Nitrite to Nitrate
Q 21 :
If the standard deviation of a population is 20 and the standard error of mean is ,then the sample size is
  1. A.25
  2. B.80
  3. C.5
  4. D.100
Q 22 :
In a multiple regression model , the explained variance per d.f .is 50 and unexplained  variance per d.f. is 10 the F-ratio is
  1. A.2.5
  2. B.5
  3. C.25
  4. D.0.2
Q 23 :
Which one of the following is not a random sampling method?
  1. A.Stratified Sampling
  2. B.Cluster Sampling
  3. C.Systematic Sampling
  4. D.Judgement Sampling
Q 24 :
The acidity of normal rain water is due to
  1. A.CO2
  2. B.CI2
  3. C.NO2
  4. D.SO2
Q 25 :
Per cent of water on the world’s surface representing fresh water is
  1. A.97
  2. B.50
  3. C.10
  4. D.3
Q 26 :
Concentration of CO2 in present day atmosphere is
  1. A.~220 ppm
  2. B.~280 ppm
  3. C.~360 ppm
  4. D.~390 ppm
Q 27 :
Hardness of diamond is due to
  1. A.Coordinate bonding
  2. B.Covalent bonding
  3. C.Electrovalent bonding
  4. D.van der Waals forces
Q 28 :
In biological systems sulphur is largely bound in
  1. A.Lipids
  2. B.Proteins
  3. C.Nucleic acids
  4. D.Proteins and nucleic acids
Q 29 :
pH of 0.01 M HNO3 is
  1. A.0.1
  2. B.1
  3. C.2
  4. D.10
Q 30 :
Which is a correct food chain in the  Antarctic ecosystem?
  1. A.Phytoplankton-KriII-Carnivorous Plankton-Emperor penguin
  2. B.Phytoplankton-KriII-Carnivorous Plankton-Squid-Elephant Seal-Leopard Seal
  3. C.Phytoplankton-Herbivorous Zoo Plankton-Adelic  Penguin- Emperor penguin
  4. D.Herbivorous Zoo Plankton-Phytoplankton-Carnivorous Plankton- ElephantSeal-Leopard Seal
Q 31 :
What are the steps necessary for sustainable management of renewable resources?
  1. A.Avoiding over-exploitation and pollution of biotic systems.
  2. B.Strengthening the resource base and augmentingregenerability of biotic systems .
  3. C.Use of alternative resources .
  4. D.All of these
Q 32 :
Fluxes of heat ,water vapour and momentum are constant in
  1. A.upper atmosphere
  2. B.middle atmosphere
  3. C.Ekman layer
  4. D.surface boundary layer
Q 33 :
Inversions occur when atmosphere is
  1. A.unstable
  2. B.neutral
  3. C.Slightly stable
  4. D.most stable
Q 34 :
When one species limits access of another species to a resource regardless of whether the resource is abundant or scarce ,it is called
  1. A.interspecific competition
  2. B.interspecific competition
  3. C.intraspecific competition
  4. D.exploitative competition
Q 35 :
Nanda Devi Sunderbans  are  examples of Indian
  1. A.National parks
  2. B.Sanctuaries
  3. C.International   heritage areas
  4. D.Biosphere reserves
Q 36 :
Match the List –I  and List-II and select the correct answer from codes given below the lists:
List –I                                                   List-II
(Analytical techniques)                    (Measured items )
a. XRF                                                1. Functional  groups
b. Nephelometry                              2. Elements
c. IR spectroscopy                           3. Turbidity
d. UV- visible spectroscopy            4. Aromatics
codes
  1. A.
    (a)      (b)        (c)       (d)
         4        2          3         1
  2. B.
    1        3          4         2
  3. C.
    3        2          4         1
  4. D.
    2        3          1         4
Q 37 :
The pH of a 0.001 M solution of HCI is
  1. A.2
  2. B.4
  3. C.3
  4. D.1
Q 38 :
The primitive atmosphere of earth consisted of
  1. A.
    CO2’ NO2’ NH3’ SO2
  2. B.
    H2’ NH3’ CH4’ H2O
  3. C.
    CO’ N2O3’ SO3’ H3N
  4. D.
    He, Ne,Ar, Kr
Q 39 :
Which of the following is the major source of mercury pollution in India ?
  1. A.
    Coal based thermal power plants
  2. B.
    Pesticides
  3. C.
    Dental amalgam fillings
  4. D.
    Electrical and electronic gadgets
Q 40 :
Nitrite causes methaemoglobinemia by
  1. A.
    oxidizing membrane proteins by
  2. B.
    reacting with calcium of bones
  3. C.
    oxidizing haemoglobin
  4. D.
    oxidizing membrane lipids
Q 41 :
Identify the correct sequence of energy flow through various levels of an ecosystem
  1. A.
    Sun’s energy→ Primary producers →Carnivores
  2. B.
    Sun’s energy→ Primary producers →Carnivores→ Herbivores
  3. C.
    Sun’s energy →Herbivores→ Primary producers
  4. D.
    Sun’ senergy→ Primary producers →Herbivores →Carnivores
Q 42 :
When environmental lapse rate is more than dry adiabatic lapse rate, the atmosphere is said to be in
  1. A.Stable state
  2. B.
    Unstable state
  3. C.
    Neutral state
  4. D.
    Conditionally stable state
Q 43 :
Which of the following accounts for nearly 75% of the available fresh water in the world?
  1. A.
    Groundwater
  2. B.
    Glaciers
  3. C.
    River water
  4. D.
    Lakes
Q 44 :
The summers in Taiga climatic zone are
  1. A.
    Hot, humid and long
  2. B.
    Warm and short
  3. C.
    Cool, rainy and short
  4. D.
    Hot and try
Q 45 :
Utilitarian conservation theory was established by
  1. A.
    Roosevelt and Pinchot
  2. B.
    John Muir
  3. C.
    Rachel Carson
  4. D.
    Brundtland
Q 46 :
Ozone undergoes photolysis due to ultraviolet radiations of wavelength
  1. A.
    <315nm
  2. B.
    <400nm
  3. C.
    <500nm
  4. D.
    <600nm
Q 47 :
Which of the following types of pesticides are least biodegradable?
  1. A.
    Organochloro compounds
  2. B.
    Organo phosphorous compounds
  3. C.
    Organocarbamates
  4. D.
    AII of the above
Q 48 :
MgSO4 can be expressed as
  1. A.
    120 equivalent of CaCO3
  2. B.
    117equivalent of CaCO3
  3. C.
    195equivalent of CaCO3
  4. D.
    84 equivalent of CaCO3
Q 49 :
SDS-PAGE of tissue proteins under denaturation determines the
  1. A.
    Hydrogen bond breakage
  2. B.
    Sulphide bridge breakage
  3. C.
    Subunits of protein
  4. D.
    None of the above
Q 50 :
In urban areas ,the main constituents of photochemicalsmog in winter season are
  1. A.
    SO2+NOX+PAN
  2. B.
    Hydrocarbons +CO + PAN
  3. C.
    Hydrocarbons +SO2+PAN
  4. D.
    Hydrocarbons+NOX+O3+PAN

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