Pollution MCQ Questions with Answers

Question 1 : Which of the following is the major cause of pollution?

a) plants
b) man
c) fungi
d) hydrocarbon gases

Answer : d

Question 2 : Effect of pollution is marked on

a) natural balance of nature
b) natural geochemical cycles
c) natural flora of place
d) all of the above

Answer : d

Question 3 : Which among the following is the secondary pollution?

a) smog
b) carbon dioxide
c) carbon monoxide
d) fly ash

Answer : a

Question 4 : which of the following fuels would produce minimum environmental pollution?

a) hydrogen
b) diesel
c) kerosene
d) coal

Answer : a

Question 5 : Which of the following form of energy does not have the problem of pollution?

a) coal
b) atom
c) petrol
d) sun

Answer : d

Question 6 : Eco-mark is given to an Indian product which is

a) rich in protein
b) environmental friendly
c) economically viable
d) pure and unadulterated

Answer : b

Question 7 : The Environment (Protection) Bill was passed by the Parliament of India in

a) 1986
b) 1972
c) 1981
d) 1984

Answer : a

Question 8 : Which among the following pollutants lead to macroscopic pollution?

I. Heavy metals from motor vehicles and acid mine drainage
II. Ammonia from food processing waste
III. Silt in runoff from construction sites, logging, slash and burn practices or land clearing sites
IV. Trash or garbage discarded by the people on the ground
V. Nurdles
VI. Shipwrecks

Which of the following statements given above is/are correct?

a) I, II and III
b) I, IV, V and VI
c) IV, V and VI
d) All of these

Answer : c

Question 9 : Consider the following statements.

I. Pollution is release of toxic undesirable material in environment.
II. Major pollution causing agent is man.
III. Sound becomes hazardous noise pollution at level above 80 dB
IV. Fishes die in water bodies polluted by sewage due to reduction of oxygen

Which of the following statements given above is/are correct?

a) I, II, III and IV
b) I, II and III
c) I and III
d) I and III

Answer : a

Question 10 : Coming soon

a)
b)
c)
d)

Answer :

Question 11 : The combustion of coal, petrol and diesel etc is the basic source of

a) water pollution
b) air pollution
c) land pollution
d) noise pollution

Answer : b

Question 12 : Which of the following is produced during the formation of photochemical smog?

a) Hydrocarbons
b) Nitrogen oxides
c) Ozone
d) Methane

Answer : b

Question 13 : Photochemical smog is a resultant of the reaction among

a) NO2, O3 and Peroxyacetyl Nitrate in the presence of sunlight
b) CO, O2 ad Peroxyacetyl Nitrate in the presence of sunlight
c) CO, CO2 and NO2 at low temperature
d) High concentration of NO2, O3 and CO in the evening

Answer : a

Question 14 : Which of the following gases is not considered as polluting agent of air?

a) CO2
b) CO
c) NO2
d) SO2

Answer : a

Question 15 : Which of the following air pollutants get dissolved in the blood more rapidly than oxygen?

a) PAN
b) Carbon dioxide
c) Carbon monoxide
d) Ozone

Answer : c

Question 16 : Which one of the following air pollutants can affect blood stream leading to death?

a) Asbestos dust
b) Cadmium
c) Nitrogen oxides
d) Carbon monoxide

Answer : d

Question 17 : Which of the following air pollutants is most dangerous?

a) Ozone
b) Hydrogen Sulphide
c) Carbon dioxide
d) Carbon monoxide

Answer : d

Question 18 : Colourless gases coming out from motor vehicle and cigarette due to incomplete combustion is

a) Carbon Monoxide
b) Nitrous Oxides
c) Carbon Dioxide
d) Methane

Answer : a

Question 19 : Pollutant emission gas in vehicle exhaust is mainly due to

a) Carbon dioxide
b) Carbon monoxide
c) Marsh Gas
d) Nitrogen Oxide

Answer : b

Question 20 : During normal conditions, the gas which pollutes the atmosphere is

a) Carbon monoxide
b) Carbon dioxide
c) Nitrogen
d) Oxygen

Answer : a

Question 21 : Carbon Monoxide, emitted by vehicles which turn to Carbon Dioxide by the catalyst converter, whose ceramic disc is controlled by?

a) Silver
b) Gold
c) Copper
d) Palladium

Answer : d

Question 22 : Cigarette smoke contains

a) Carbon monoxide dioxycine
b) Carbon monoxide and nicotine
c) Carbon monoxide and benzene
d) Dioxycine and benzene

Answer : c

Question 23 : Which of the following pollutants is not contained in the vehicular exhaust emissions?

a) Lead
b) Ammonia
c) Carbon monoxide
d) Particulate matter

Answer : b

Question 24 : Combustion of petrol in automobiles pollute the air by producing which of the following metals

a) Mercury
b) Cadmium
c) Lead
d) Carbon dioxide

Answer : c

Question 25 : Workers of paint industry are exposed to which one of the following hazards?

a) Nickel pollution
b) Cadmium pollution
c) Strontium pollution
d) Lead pollution

Answer : d

Question 26 : Which one of the following is not related to air pollution?

a) Smog
b) Acid Rain
c) Eutrophication
d) Asbestosis

Answer : c

Question 27 : Which one of the following is an air pollutant gas and is released by burning fossil fuel?

a) Hydrogen
b) Nitrogen
c) Oxygen
d) Sulphur Dioxide

Answer : d

Question 28 : Which one of the following is a useful biological indicator of sulphur dioxide pollution?

a) Bryophytes
b) Algal Blooms
c) Pseudomonas
d) Lichens

Answer : d

Question 29 : Lichens are the best indicator of

a) air pollution
b) water pollution
c) soil pollution
d) noise pollution

Answer : a

Question 30 : SPM stands for

a) Suspended Particulate Matter
b) Standard Particles Material
c) Suspended Particles Material
d) None of the above

Answer : a

Question 31 : What is a particulate matter?

a) Solid residue
b) Air pollutant
c) Water pollutant
d) Soil pollutant

Answer : b

Question 32 : Which one of the following statements about air pollution caused by diesel engines is correct?

a) It produces large quantity of carbon monoxide at lower and high temperatures
b) It produces large quantity of nitrogen oxides at lower and high temperatures
c) It produces large quantity of carbon monoxide at lower temperature and nitrogen oxides at high temperature
d) It produces large quantity of nitrogen oxides at lower temperature and carbon monoxide at high temperature

Answer : d

Question 33 : Fly ash is a pollutive combustion product of burning

a) coal
b) charcoal
c) diesel/kerosene oil
d) CNG

Answer : a

Question 34 : Asian Brown Cloud, 2002,was mainly spread over

a) East Asia
b) South-East Asia
c) South Asia
d) West Asia

Answer : c

Question 35 : The most important indoor air pollutant is

a) Sulphur Dioxide
b) Carbon monoxide
c) Nitrogen Dioxide
d) Radon Gas

Answer : d

Question 36 : Which one of the following is not an instrumental device to check air pollution?

a) Bag Filter
b) Cyclone Collector
c) Cyclone separator
d) Cyclone Divider

Answer : d

Question 37 : Which of the following is considered to be the optimum concentration of carbon dioxide for natural balance in atmosphere?

a) 0.02 per cent
b) 0.03 per cent
c) 0.04 per cent
d) 0.05 per cent

Answer : c

Question 38 : Which among the following chronic lung diseases is commonly known as ‘black lung’ disease that leads to reduced life expectancy in coal-miners?

a) Pneumoconiosis
b) Progressive Massive Fibrosis
c) Mesothelioma
d) Collier’s Asthma

Answer : a

Question 39 : Which one of the following pollutes the air of a big city?

a) Copper
b) Chromium
c) Lead
d) Calcium

Answer : c

Question 40 : The main air pollutant(s) in metropolitan cities is/are

a) O3
b) CO and SO2
c) CO2 and NO2
d) None of these

Answer : d

Question 41 : Environmental friendliness of a vehicle could be measured by the amount of pollutants it emits per passenger per kilometer travelled. Rate the environmental friendliness (1= best and 4=worst) of the following vehicles as per this criterion.

Car : Scooter : Bus : Bicycle

a) 4 : 3 : 2 : 1
b) 2 : 3 : 4 : 1
c) 3 : 2 : 4 : 1
d) 4 : 2 : 3 : 1

Answer : a

Question 42 : Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone?

a) Increased liver cancer
b) Increased skin cancer
c) Damage to eyes
d) Reduced immune system

Answer : a

Question 43 : Which one of the following statements best describes the term ‘Social Cost of Carbon’?

a) Long-term damage done by a tonne of CO2 emissions in a given year
b) Requirement of fossil fuels for a country to provide goods and services to its citizens, based on the burning of those fuels
c) Efforts put in by a climate refugee to adapt to live in a new place
d) Contribution of an individual person to the carbon footprint on the planet Earth

Answer : a

Question 44 : Atmospheric ozone layer which protects us from UV-B and C is getting depleted most by addition of

a) Chlorofluorocarbon
b) Carbon Monoxide
c) Carbon Dioxide
d) Sulphur Dioxide

Answer : a

Question 45 : The formation of ozone hole in the Antarctic region has been a cause of concern. What could be the reason for the formation of this hole?

a) Presence of prominent tropospheric turbulence, and inflow of chlorofluorocarbons
b) Presence of prominent polar front and stratospheric clouds and inflow of chlorofluorocarbons
c) Absence of polar front and stratospheric clouds, and inflow of methane and chlorofluorocarbons
d) Increased temperature at polar region due to global warming

Answer : b

Question 46 : CFCs (Chlorofluorocarbons) are Greenhouse gases that have caused rise of 0.3^oC in the global temperatures in the past century. Name the CFC that is used in refrigerators

a) Carbon dioxide
b) Freon
c) Methane
d) Ammonia

Answer : b

Question 47 : Which of the following statements is not true?

a) Photochemical smog always contains Ozone
b) The toxic effect of Carbon Monoxide is due to its greater affinity for haemoglobin as compared to oxygen
c) Lead is the most hazardous metal pollutant of automobile exhaust
d) None of the above

Answer : d

Question 48 : Which of the following is used to clean polluted environment?

a) Oxygen
b) Rain
c) Nitrogen
d) Air

Answer : b

Question 49 : Under the National Air Quality Monitoring Programme (NAMP) which of the following air pollutants are regularly monitored at all locations?

I. Oxides of Nitrogen
II. Suspended Particulate Matter
III. Respirable Suspended Particulate Matter (RSPM)
IV. Sulphur Dioxide

a) I and II
b) II, III and IV
c) All are monitored
d) All except III

Answer : c

Question 50 : With reference to ‘fly ash’ produced by the power plants using as fuel, which of the following statements is/are correct?

I. Fly ash can be used in the production of bricks for building construction
II. Fly ash can be used as a replacement for some of the portland cement contents of concrete
III. Fly ash is made up of silicon dioxide and calcium oxide only, and does not contain any toxic elements

Cuppy Studies

Pollution MCQ Questions with Answers

Explore More MCQs Below

Ancient History

Medieval History

Modern History

Geography

World Geography

Indian Geography

Environment and Ecology

Indian Polity

Indian Economy

Science and Technology

Miscellaneous