Pollution Test 1

Total Questions:50 Total Time: 75 Min



Questions 1 of 50

Question:Which of the following statement is incorrect

Answers Choices:

Carbon monoxide is the major environment pollutant

All pollutants are not waste

Nitrogen and Mg can pollute water

Lichens are affected by sulphur dioxide

Questions 2 of 50

Question:Which Act was formulated in the year 1986

Answers Choices:

The Insecticide Act

The Water (Prevention and Control of Pollution) Act

The Air (Prevention and Control of Pollution) Act

The Noise (Prevention and Control of Pollution) Act

The Environment (Protection) Act

Questions 3 of 50

Question:Which of the following gas causes pollution

Answers Choices:



Both (1) and (2)

None of the above

Questions 4 of 50

Question:Cyanosis is caused by

Answers Choices:


Nitrate concentration



Questions 5 of 50

Question:Carrier of fluorosis is

Answers Choices:





Questions 6 of 50

Question:Which of the following is a secondary pollutant

Answers Choices:





Questions 7 of 50

Question:The common refrigerant chlorofluoro-methane (freon) and \(N{O_2}\) is a serious pollutant because

Answers Choices:

It lowers atmospheric temperature

It prevents cloud condensation

It destroys haemoglobin

It disrupts \({O_3}\) layer

Questions 8 of 50

Question:Pollutant from motor-car exhaust which causes a mental disease is

Answers Choices:





Questions 9 of 50

Question:Photochemical transformation of the automobile exhaust emission in UV wavelength of sunlight results into

Answers Choices:

CO and \({\rm{C}}{O_{\rm{2}}}\)

\(S{O_{\rm{2}}}\)and \(N{O_{\rm{2}}}\)

\({O_{\rm{2}}}\) and PAN

\({\rm{C}}{{\rm{H}}_{\rm{4}}}\) and \({{\rm{C}}_{\rm{6}}}{{\rm{H}}_{\rm{6}}}\)

Questions 10 of 50

Question:Kyoto protocol has, specified the commitments of different countries

Answers Choices:

To mitigate climate changes

Limit production of chlorofluorocarbons

To prepare a world climatic programme

None of the above

Questions 11 of 50

Question:Limit of BOD prescribed by Central Pollution Control Board for the discharge of industrial and municipal waste waters into natural surface waters, is

Answers Choices:

<100 ppm

< 30 ppm

< 3.0 ppm

< 10 ppm

Questions 12 of 50

Question:Montreal Protocol which calls for appropriate action to protect the ozone layer from human activities was passed in the year

Answers Choices:





Questions 13 of 50

Question:The greatest air pollution disaster of last decade was observed in

Answers Choices:

Calcutta (Bengal)

Bhopal (M.P.)

Ahmedabad (Gujrat)

Agra (U.P.)

Questions 14 of 50

Question:Photochemical smog pollution does not contain

Answers Choices:

Carbon dioxide

PAN (peroxy acyl nitrate)


Nitrogen dioxide

Questions 15 of 50

Question:Indicator plants which can be used to indicate atmospheric pollution by \({\RM{S}}{O_{\RM{2}}}\) are

Answers Choices:

Lichens like Usnea

Grassland like Deschampsia

Moss like Sphagnum

Climbers like Cucurbita

Questions 16 of 50

Question:BOD stands for

Answers Choices:

Biological organism death

Biochemical organic matter decay

Biotic oxidation demand

Biochemical oxygen demand

Questions 17 of 50

Question:Radioactive strontium as a result of radioactive fall out, is

Answers Choices:





Questions 18 of 50

Question:Spraying of D.D.T. on crops produces pollution of

Answers Choices:

Air only

Air and soil only

Air, soil and water

Air and water only

Questions 19 of 50

Question:The excessive discharge of fertilizers into water bodies results in

Answers Choices:

Growth of fish

Death of hydrophytes



Questions 20 of 50

Question:Ozone layer in upper atmosphere (stratosphere) is destroyed by or which one of the chemicals is responsible for the reduction of ozone content of atmosphere

Answers Choices:

Hydrochloric acid

Photochemical smog

Chlorofluoro carbon (CFC)

Sulphur dioxide

Questions 21 of 50

Question:What are the chief pollutants of the atmosphere which are most likely to deplete the ozone layer

Answers Choices:

Sulphur dioxide

Nitrogen oxide and fluorocarbons

Carbon dioxide

Carbon monoxide

Questions 22 of 50

Question:The pollutants emitted by jet aeroplanes in outer atmosphere flourocarbons are known as

Answers Choices:


Photochemical oxidants



Questions 23 of 50

Question:Which causes water pollution

Answers Choices:

2, 4-D and pesticides


Automobile exhaust


Questions 24 of 50

Question:Pollution can be controlled by

Answers Choices:

Sewage treatment

Manufacturing electrically operated vehicles

By checking atomic blasts

All of the above

Questions 25 of 50

Question:Checking of reradiating heat by atmospheric dust, water vapour, ozone, \({\RM{C}}{O_{\RM{2}}}\) etc. is known as

Answers Choices:

Green house effect

Radioactive effect

Ozone layer effect

Solar effect

Questions 26 of 50

Question:Photochemical smog is related to the pollution of

Answers Choices:





Questions 27 of 50

Question:1\({O_{\rm{2}}}\). Which one of the following statements is correct

Answers Choices:

Extensive use of chemical fertilizers may lead to eutrophication of nearby water bodies

Both Azotobacter and Rhizobiu,. fix atmospheric nitrogen in root nodules of plants

Cyanobacteria such as Anabaena and Nostoc are important mobilizers of phosphates and potassium for plant nutrition in soi.

At present it is not possible to grow maize without chemical fertilizers

Questions 28 of 50

Question:1\({O_{\rm{3}}}\). Carbon monoxide is a major pollutant of

Answers Choices:





Questions 29 of 50

Question:Air pollution effects are usually found on

Answers Choices:





Questions 30 of 50

Question:Water pollution

Answers Choices:

Increases oxygenation

Decreases turbidity

Increases turbidity and deoxygenation

Increases photosynthesis

Questions 31 of 50

Question:Which of the following is the use of lichens in case of pollution

Answers Choices:

They treat the polluted water

They act as bioindicators of pollutions

They promote pollution

Lichens are not related with pollution

Questions 32 of 50

Question:In 1984, Bhopal gas tragedy was caused due to leakage of

Answers Choices:

Sodium monoxide

Sodium thiocyanate

Potassium isocyanate

Methyl isocyanate

Questions 33 of 50

Question:Green house effect refers to

Answers Choices:

Cooling of earth

Trapping of UV rays

Production of cereals

Warming of earth

Questions 34 of 50

Question:Which of the following is pollution related disorder

Answers Choices:





Questions 35 of 50

Question:The high amount of E. co/i in water is the indicator of

Answers Choices:

Hardness of water

Industrial pollution

Sewage pollution

Presence of chlorine in water

Questions 36 of 50

Question:Which is a degradable pollutant

Answers Choices:


Aluminium foil

Domestic wastes

Mercury salts

Questions 37 of 50

Question:Which is a green house gas

Answers Choices:





Questions 38 of 50

Question:Which of the following is biodegradable pollutant

Answers Choices:





Questions 39 of 50

Question:Which of the following does not occur when the sewage is discharged into water

Answers Choices:

Increase in \({O_{\rm{2}}}\)

Cyanophycearf blooms occur

Depletion of \({O_{\rm{2}}}\) layers


Questions 40 of 50

Question:Cadmium pollution may cause

Answers Choices:

Minimata disease

Skeletal fluorosis

Black foot disease

Itai-itai disease

Questions 41 of 50

Question:Biological Oxygen Demand (BOD) is a measure of

Answers Choices:

Industrial wastes poured into water bodies

Extent to which water is polluted with organic compounds

Amount of carbon monoxide inseparably combined with haemoglobin

Amount of oxygen needed by green plants during night

Questions 42 of 50

Question:In almost all Indian metropolitan cities like Delhi, the major atmospheric pollutant(s) is/ are

Answers Choices:

Suspended particulate matter (SPM)

Oxides of sulphur

Carbon dioxide and carbon monoxide

Oxides of nitrogen

Questions 43 of 50

Question:Odd pollutant amongst the following is

Answers Choices:




Acid rain

Questions 44 of 50

Question:The term "Bio-magnification" refers to the

Answers Choices:

Growth of organism due to food consumption

Increase in population size

Blowing up of environmental issues by man

Increase in the concentration of non-degradable pollutants as they pass through food chain

Decrease in population size

Questions 45 of 50

Question:In 1984, the Bhopal gas tragedy took place because methyl isocyanate

Answers Choices:

Reacted with \({\RM{C}}{O_{\RM{2}}}\)

Reacted with water

Reacted with DDT

Reacted with ammonia

Questions 46 of 50

Question:In the treatment of waste water discharge, which treatment stage involves biological treatment

Answers Choices:

Primary treatment

Secondary treatment

Tertiary treatment

Reverse osmosis stage

Questions 47 of 50

Question:Which one of the following is not a bioindicator of water pollution

Answers Choices:



Stone files

Sewage fungus

Questions 48 of 50

Question:It is used in refrigerator and air conditoners and is a source of CI

Answers Choices:





Questions 49 of 50

Question:What will be the effect of addition of organic material on water

Answers Choices:

COD remain unaffected

BOD remain unaffected

Increases BOD

Reduces BOD

Questions 50 of 50

Question:This pollutant causes burning sensation of throat and eyes and vomiting sensation

Answers Choices:

Hydrogen sulphide


Hydrogen cyanide

Arsenic substances