Environmental Pollution MCQ. We covered all the Environmental Pollution MCQ with answers pdf in this post for free so that you can practice well for the exam.
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Environmental Pollution MCQ for Students
Which of the following metal is a water pollutant and causes sterility in human beings
(a) As
(b) Mn
(c) Mg
(d) Hg
Option b – Mn
Which causes the death of fish in water bodies polluted by sewage?
(a) Foul smell
(b) Pathogens
(c) Herbicides
(d) Decrease in D.O.
Option d – Decrease in D.O.
B.O.D. test or biochemical oxygen demand test is made for measuring
(a) air pollution
(b) water pollution
(c) noise pollution
(d) soil pollution
Option b – water pollution
The maximum prescribed concentration of cadmium in drinking water in ppm is
(a) 0.05
(b) 3
(c) 2
(d) 0.005
Option d – 0.005
Brewery and sugar factory waste alters the quality of a water body by increasing
(a) temperature
(b) turbidity
(c) pH
(d) COD and BOD
Option d – COD and BOD
Eutrophication causes a reduction in
(a) dissolved oxygen
(b) nutrients
(c) dissolved salts
(d) All of the above
Option a – dissolved oxygen
Sewage mostly constitutes
(a) Non-biodegradable pollutants
(b) Biodegradable pollutants
(c) Effluents
(d) Air pollutants
Option b – Biodegradable pollutants
The chief source of soil and water pollution is
(a) mining
(b) agro-industry
(c) thermal power plant
(d) All of the above
Option d – All of the above
The effect of polluted water on soil is, that
(a) it decreases fertility
(b) it contaminates groundwater
(c) it renders soil acidic or basic
(d) all of the above
Option d – All of the above
Thermal pollution affects mainly
(a) vegetation
(b) aquatic creatures
(c) rocks
(d) air
Option b – aquatic creatures
“Reducing potentially hazardous waste through smarter production”. This represents a great step forward for
(a) the green revolution
(b) green chemistry
(c) the industrial revolution
(d) green biotechnology
Option b – green chemistry
Lichens do not like to grow in cities
(a) because of the absence of the right type of algae and fungi
(b) because of lack of moisture
(c) because of SO₂ pollution
(d) because the natural habitat is missing
Option c – because of SO₂ pollution
The high amount of E. coli in water is an indicator of
(a) the hardness of water
(b) industrial pollution
(c) sewage pollution
(d) the presence of chlorine in the water
Option c – sewage pollution
The organisms that break down dead or organic matter and control pollution are
(a) Bacteria
(b) Fungi
(c) Both (i) & (ii)
(d) None of the above
Option c – Both (i) & (ii)
Biological magnification can be reduced by
(a) The use of chemicals
(b) Washing
(c) Heating and boiling food items
(d) None of the above
Option a – The use of chemicals
Ozone is entirely different from O₂ as
(a) Is present all over the atmosphere / or
(b) Is acidic
(c) Is a dead poison
(d) All the above
Option c – Is a dead poison
We should keep our environment
(a) Healthy
(b) Clean
(c) More Productive
(d) All of the above
Option d – All of the above
For plastic waste what is true is
(a) Heat and melting do lead to getting rid of soil pollution
(b) No enzymes can break it into smaller bits without causing pollution
(c) These are non-biodegradable
(d) All of these
Option c – These are non-biodegradable
Minamata disease in Japan is due to the pollution of
(a) Arsenic
(b) Lead
(c) Cyanide
(d) Mercury
Option d – Mercury
The gas(es) not responsible for ozone depletion :
(a) NO and freons
(b) SO₂
(c) CO₂
(d) Both (b) and (c)
Option d – Both (b) and (c)
In which of the following regions hydrogen and helium are found?
(a) Stratosphere
(b) Mesosphere
(c) Exosphere
(d) Troposphere
Option c – Exosphere
Which of the following is the major cause of global warming?
(a) re-radiation of U.V. rays by CO₂ and H₂O
(b) re-radiation of I.R. rays by CO2 and H₂O
(c) re-radiation of I.R. rays by O₂ and N₂
(d) re-radiation of U.V. rays by O₂ and N₂
Option b – re-radiation of I.R. rays by CO2 and H₂O
The region containing water vapor is
(a) thermosphere
(b) stratosphere
(c) troposphere
(d) mesosphere
Option c – troposphere
The biggest particulate matter is
(a) HNO3 droplets
(b) Soot
(c) H₂SO4 droplets
(d) Fly ash
Option d – Fly ash
The aromatic compounds present as particulates are
(a) polycyclic aromatic hydrocarbons
(b) benzene
(c) toluene
(d) nitrobenzene
Option a – polycyclic aromatic hydrocarbons
Photochemical smog is a resultant of the reaction among
(a) NO₂, O3 and Peroxyacetyl Nitrate in the presence of sunlight.
(b) CO, O₂ and 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.
Option a – NO₂, O3 and Peroxyacetyl Nitrate in the presence of sunlight
Which of the following gases is not considered as polluting agent of air?
(a) CO₂
(b) CO
(c) NO₂
(d) SO₂
Option a – CO₂
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
Option c – Carbon monoxide
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
Option b – air pollution
Which of the following is produced during the formation of photochemical smog?
(a) Hydrocarbons
(b) Nitrogen oxides
(c) Ozone
(d) Methane
Option b – Nitrogen oxides
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
Option d – Palladium
Cigaratte smoke contains
(a) Carbon monoxide dioxycine
(b) Carbon monoxide and nicotine
(c) Carbon monoxide and benzene
(d) Dioxycine and benzene
Option c – Carbon monoxide and benzene
Which of the following pollutant is not contained in the vehicular exhaust emissions?
(a) Lead
(b) Ammonia
(c) Carbon monoxide
(d) Particulate matter
Option b – Ammonia
Combustion of petrol in automobiles pollute the air by producing which of the following metals.
(a) Mercury
(b) Cadmium
(c) Lead
(d) Carbon dioxide
Option c – Lead
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
Option d – Lead pollution
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
Option d – Carbon monoxide
Which of the following air pollutants is most dangerous?
(a) Ozone
(b) Hydrogen Sulphide
(c) Carbon dioxide
(d) Carbon monoxide
Option d – Carbon monoxide
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
Option a – Carbon monoxide
Pollutant emission gas in vehicle exhaust is mainly due to
(a) Carbon dioxide
(b) Carbon monoxide
(c) Marsh Gas
(d) Nitrogen Oxide
Option b – Carbon monoxide
During normal conditions, the gas which pollutes the atmosphere is
(a) Carbon monoxide (CO)
(b) Carbon dioxide (CO₂)
(c) Nitrogen (N₂)
(d) Oxygen (O₂)
Option a – Carbon monoxide (CO)
Eco-mark is given to an Indian product which is
(a) rich in protein.
(b) environment friendly
(c) economically viable.
(d) pure and unadulterated.
Option b – environment friendly
The Environment (Protection) Bill was passed by the Parliament of India in
(a) 1986
(b) 1972
(c) 1981
(d) 1984
Option a – 1986
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 Select the correct answer using the codes given below.
(a) I, II and III
(b) I, IV, V and V
(c) IV, V and VI
(d) All of these
Option c – IV, V and VI
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 statements given above are correct about pollution?
(a) I, II, III and IV
(b) I, II and III
(c) I and III
(d) I and III
Option a – I, II, III and IV
Which of the following is the major cause of pollution?
(a) Plants
(b) Man
(c) Fungi
(d) Hydrocarbon gases
Option d – Hydrocarbon gases
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
Option d – All of the above
Which among the following is the secondary pollution?
(a) Smog
(b) Carbon dioxide
(c) Carbon monoxide
(d) Fly ash
Option a – Smog
Which of the following fuels would produce minimum environmental pollution? ( Indoor Pollution Reading Answers )
(a) Hydrogen
(b) Diesel
(c) Kerosene
(d) Coal
Option a – Hydrogen
Which of the following form of energy does not have the problem of pollution?
(a) Coal
(b) Atom
(c) Petrol
(d) Sun
Option d – Sun
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
Option d – Cyclone Divider
Which of the following is considered to be the optimum concentration of carbon dioxide for natural balance in the atmosphere?
(a) 0.02 per cent
(b) 0.03 per cent
(c) 0.04 per cent
(d) 0.05 per cent
Option c – 0.04 per cent
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
Option a – Pneumoconiosis
Which one of the following pollutes the air of a big city?
(a) Copper
(b) Chromium
(c) Lead
(d) Calcium
Option c – Lead
The main air pollutant(s) in metropolitan cities is/are
(a) 03
(b) CO and SO₂
(c) CO₂ and NO₂
(d) None of these
Option d – None of these
The environmental friendliness of a vehicle could be measured by the number of pollutants it emits per passenger per kilometre 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
Option a – 4 : 3 2 : 1
Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere depletion due to stratospheric ozone?
(a) Increased liver cancer
(b) Increased skin cancer
(c) Damage to eyes
(d) Reduced immune system
Option a – Increased liver cancer
Asian Brown Cloud, 2002 was mainly spread over
(a) East Asia
(b) South-East Asia
(c) South Asia
(d) West Asia
Option c – South Asia
The most important indoor air pollutant is
(a) Sulphur Dioxide
(b) Carbon Monoxide
(c) Nitrogen Dioxide
(d) Radon Gas
Option d – Radon Gas
Which one of the following statements best describes the term ‘Social Cost of Carbon’? It is a measure, in monetary value, of the
(a) Long-term damage was done by a tonne of CO₂ emissions in a given year.
(b) The requirement of fossil fuels for a country to provide goods and services to its citizens is based on the burning of those fuels.
(c) Efforts are put in by a climate refugee to adapt to living in a new place.
(d) Contribution of an individual person to the carbon footprint on the planet Earth.
Option a – Long-term damage was done by a tonne of CO₂ emissions in a given year
The atmospheric ozone layer which protects us from UV-B and C is getting depleted most by the addition of
(a) Chlorofluorocarbon
(b) Carbon Monoxide
(c) Carbon Dioxide
(d) Sulphur Dioxide
Option a – Chlorofluorocarbon
The formation of the 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) The increased temperature in the polar region is due to global warming.
Option b – Presence of prominent polar front and stratospheric clouds, and inflow of chlorofluorocarbons
CFCs (Chlorofluorocarbons) are Greenhouse gases that have caused a rise of 0.3°C in global temperatures in the past century. Name the CFC that is used in refrigerators.
(a) Carbon dioxide
(b) Freon
(c) Methane
(d) Ammonia
Option b – Freon
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
Option d – None of the above
Which of the following is used to clean a polluted environment?
(a) Oxygen
(b) Rain
(c) Nitrogen
(d) Air
Option b – Rain
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 Ill. Respirable Suspended Particulate Matter (RSPM) IV. Sulphur Dioxide Codes
(a) I and II
(b) II, III and IV
(c) All are monitored
(d) All except III
Option c – All are monitored
With reference to ‘fly ash’ produced by the power plants used as fuel, which of the following statements is/are correct? 1. 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. Select the correct answer using the codes given below
(a) I and II
(b) Only II
(c) I and III
(d) Only Ill
Option a – I and II
Which one of the following statements about air pollution caused by diesel engines is correct?
(a) It produces a large quantity of carbon monoxide at lower and high temperatures.
(b) It produces large quantities of nitrogen oxides at lower and high temperatures.
(c) It produces large quantities of carbon monoxide at lower temperatures and nitrogen oxides at high temperatures.
(d) it produces large quantities of nitrogen oxides at lower temperatures and carbon monoxide at high temperatures.
Option d – it produces large quantities of nitrogen oxides at lower temperatures and carbon monoxide at high temperatures
Fly ash is a pollutive combustion product of burning
(a) coal
(b) charcoal
(c) diesel/kerosene ol
(d) CNG
Option a – coal
(a) Smog
(b) Acid Rain
(c) Eutrophication
(d) Asbestosis
Option c – Eutrophication
Which one of the following is an air pollutant gas that is released by burning fossil fuel?
(a) Hydrogen
(b) Nitrogen
(c) Oxygen
(d) Sulphur Dioxide
Option d – Sulphur Dioxide
Which one of the following is a useful biological indicator of sulphur dioxide pollution?
(a) Bryophytes
(b) Algal Blooms
(c) Pseudomonas
(d) Lichens
Option d – Lichens
Lichens are the best indicator of
(a) air pollution
(b) water pollution
(c) soil pollution
(d) noise pollution
Option a – air pollution
SPM stands for
(a) Suspended Particulate Matter
(b) Standard Particles Material
(c) Suspended Particles Material
(d) None of the above
Option a – Suspended Particulate Matter
What is particulate matter? ( Light Pollution Reading Answers )
(a) Solid residue
(b) Air pollutant
(c) Water pollutants
(d) Soil pollutant
Option b – Air pollutant
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