Air Pollution MCQ Questions

Air pollution questions and answers for quiz

Air pollution questions and answers for quiz:

Question: Carbon monoxide is a major pollutant of
(a) Water
(b) Air
(c) Noise
(d) Soil

Ans. (b)

Question: Supersonic jets cause pollution by thinning of
(a) Sulfur dioxide layer
(b) Carbon dioxide layer
(c) Ozone layer
(d) None of these

Ans. (c)

Question: Which one of the following fuels causes minimal air pollution?
(a) Kerosene oil
(d) Hydrogen
(d) Coal
(d) Diesel

Ans. (b)

Question: Clouds are present in-
(a) troposphere
(b) stratosphere
(c) mesosphere
(d) thermosphere

Ans. (a)

Question: Global warming is caused due to the____ concentration of CO2 in the air
(a) Decreased
(b) Increased
(c) Both (a) & (b)
(d) None of these

Ans. (b)

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Question: Generally speaking, the atmosphere in big cities is polluted most by
(a) Radioactive fall out
(b) Household waste
(c) Automobile exhaust
(d) Pesticide residues

Ans. (c)

Question: Chernobyl tragedy occurred in
(a) 26th May, 1966
(b) 26th April, 1986
(c) 6th Aug., 1947
(d) 9th May, 1945

Ans. (b)

Question: Which one of the following gases can deplete the ozone layer in the upper atmosphere?
(a) Ammonia
(b) Methane
(c) Carbon monoxide
(d) Sulfur dioxide

Ans. (b)

Question: Which of the following pollutes the air of big cities?
(a) Copper
(b) Lead
(c) Chromium
(d) Copper Oxide

Ans. (b)

Question: Most harmful pollutant is
(a) CO2
(b) SO3
(c) NO2
(d) SO2

Ans. (d)

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Question: Air is a/an-
(a) element
(b) Compound
(c) mixture
(d) None of these

Ans. (c)

Question: Pollution is a necessary evil nowadays because of
(a) Advanced industrialization
(b) Urge towards economic growth
(c) Urge towards scientific discoveries
(d) All of the above

Ans. (d)

Question: Air pollution causing photochemical oxidants production includes
(a) Carbon monoxide, sulfur dioxide
(b) Nitrous oxide, nitric acid fumes, nitric oxide
(c) Ozone, peroxyacetyl nitrate, aldehydes
(d) Oxygen, chlorine, fuming nitric acid

Ans. (c)

Question: The carbon dioxide content in the air that we exhale is about
(a) 4%
(b) 8%
(c) 12%
(d) 16%

Ans. (a)

Question: Spraying of D.D.T. on crops produces pollution of
(a) Air only
(b) Air and soil only
(c) Air, soil and water
(d) Air and water only

Ans. (c)

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Question: Air pollution effects are usually found on
(a) Leaves
(b) Flowers
(c) Stems
(d) Roots

Ans. (a)

Question: The cooling agent in a refrigerator:
(a) Oxygen
(b) Nitrogen
(c) Freon
(d) carbon dioxide

Ans. (c)

Question: Air quality indicator is
(a) Lichen
(b) Moss
(c) Algae
(d) None of these

Ans. (a)

Question: The major factor in causing global warming is
(a) Increase in oxygen concentration in the atmosphere
(b) Decrease in carbon dioxide concentration in the atmosphere
(c) Increase in carbon dioxide concentration in the atmosphere
(d) Decrease in atmospheric nitrogen

Ans. (c)

Question: CFC is not recommended to be used in refrigerators because they
(a) Increase temperature
(b) Deplete ozone
(c) Affect the environment
(d) Affect the human body

Ans. (b)

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Question: The pollutants emitted by jet airplanes in the outer atmosphere, fluorocarbons are known as
(a) Smog
(b) Photochemical oxidants
(c) Aerosols
(d) Loess

Ans. (c)

Question: In 1984, Bhopal gas tragedy was caused due to leakage of
(a) Sodium monoxide
(b) Sodium thiocyanate
(c) Potassium isocyanate
(d) Methyl isocyanate

Ans. (d)

Question: Oxides of sulfur and nitrogen are important pollutants of
(a) Air and water
(b) Air
(c) Water
(d) Soil

Ans. (b)

Question: Which of the following is a primary pollutant in the atmospheric air?
(a) Cl2
(b) SO3
(c) Nitrates
(d) Sulfates

Ans. (a)

Question: In air pollution, industries are
(a) Line sources
(b) Point sources
(c) Area sources
(d) Diffuse sources

Ans. (b)

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Question: Which of the following is not a pollutant?
(a) Hydrogen
(b) Carbon dioxide
(c) Sulfur dioxide
(d) Carbon Monoxide

Ans. (b)

Question: Photochemical smog is related to the pollution of
(a) Soil
(b) Water
(c) Noise
(d) Air

Ans. (d)

Question: Air pollution is not caused by
(a) Pollen grains
(b) Automobiles
(c) Industries
(d) Hydro-electric power

Ans. (d)

Question: Which of the following is not an air pollutant ?
(a) Smoke
(b) Carbon Dioxide
(c) Nitrogen Gas
(d) Sulfur Dioxide

Ans. (c)

Question: How carbon monoxide, emitted by automobiles, prevents transport of oxygen in the body tissues?
(a) By changing oxygen into carbon dioxide
(b) By destroying the hemoglobin
(c) By forming a stable compound with hemoglobin
(d) By obstructing the reaction of oxygen with hemoglobin

Ans. (c)

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Question: The most hazardous metal pollutant of automobile exhaust is
(a) Mercury
(b) Lead
(c) Cadmium
(d) Copper

Ans. (b)

Question: In India, acid rains are not common due to
(a) less SO2 in air
(b) factories with long chimneys
(c) dust in air
(d) rural areas

Ans. (c)

Question: Ozone layer is the part of
(a) ionosphere
(b) stratosphere
(c) troposphere
(d) exosphere

Ans. (b)

Question: The water boils when :
(a) Saturated vapor pressure of water becomes equal to the atmospheric pressure
(b) Saturated vapor pressure of water becomes less than atmospheric pressure
(c) Saturated vapor pressure of water becomes more than atmospheric pressure
(d) Vapor pressure of water becomes more than atmospheric pressure

Ans. (a)

Question: Acid rain is caused due to pollution of the atmosphere by
(a) Carbon Dioxide
(b) Methane Gas
(c) Ozone & Carbon Dioxide
(d) Nitrous Oxide & Sulfur Dioxide

Ans. (d)

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Question: Highest percentage of air consists of
(a) Oxygen
(b) Carbon dioxide
(c) Nitrogen
(d) Argon

Ans. (c)

Question: Air pollution causes
(a) Global warming
(b) Respiratory problems
(c) Soil erosion
(d) None of these

Ans. (b)

Question: Green House gas is
(a) Nitrogen
(b) Oxygen
(c) Methane
(d) Carbon dioxide

Ans. (d)

Question: Disease aggravated by air pollution is:
(a) choler
(b) bronchitis
(c) rheumatism
(d) none of these

Answer. (b)

Question: The smokeless fuel that can check air pollution is
(a) Petroleum
(b) Kerosene
(c) CNG
(d) Coal

Ans. (c)

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Question: The industrial separation of oxygen and nitrogen from air is possible, because
(a) Oxygen and nitrogen have different boiling points.
(b) Oxygen supports combustion, while nitrogen does not.
(c) Nitrogen is not reactive, while oxygen is reactive.
(d) None of the above.

Ans. (a)

Question: What are CFC’s?
(a) Chlorofluorocarbons
(b) Chlorofluorochlorine
(c) Chlorofumecarbons
(d) Chlorofumeborons

Ans. (a)

Question: Ozone protects the living organisms on the earth from:
(a) Ultraviolet radiations
(b) Infrared radiations
(c) Gamma radiations
(d) None of the above

Ans. (a)

Question: Health problems related to air pollution includes:
(a) Bronchitis
(b) Asthma
(c) Skin allergy
(d) All the above

Ans. (d)

About the author

Richa Bhardwaj

Richa (B. Tech) has keen interest in Science and loves to teach students about it through lectures and assignments. She always try to use simple language and sentences while writing to make sure learner understands everything properly.

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