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Class 8

Explore popular questions from Pollution of Air and Water for Class 8. This collection covers Pollution of Air and Water previous year Class 8 questions hand picked by experienced teachers.

Pollution of Air and Water

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Q 1. Where was the painful bone disease Itai-itai reported first –

A

Britain

B

India

Japan

D

USA

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Q 2. Which one of the following is not a green house gas

A

CO{tex}_2{/tex}

B

CH{tex}_4{/tex}

O{tex}_2{/tex}

D

CFCs

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Q 3. Montreal protocol was signed in –

A

1978

1987

C

1991

D

1993

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Q 4. Photo chemical smog was first observed in –

Los Angeles

B

Tokyo

C

Newyork

D

Sydney

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Q 5. Acid rain is due to –

A

Water pollution

Air pollution

C

Automobile pollution

D

Pesticide pollution

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Q 6. Maximum air pollution is at –

Delhi

B

Bhopal

C

Kolkata

D

Bangalore

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Q 7. Waldsterben is –

Decline in forest

B

Development of fog

C

Harm to sculptures, statues and building

D

All of the above

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Q 8. In air pollution Delhi ranks –

A

First most polluted

B

Second most polluted

C

Third most polluted

Fourth most polluted

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Q 9. The term green house effect was given by –

A

Fourier

B

Tyndall

Arrhenius

D

Linnaeus

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Q 10. The term 'acid rain' was given by –

A

Fourier

Augus

C

Tyndall

D

Linnaeus

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Q 11. Chlorination of treated waste water is required for –

Killing all mircobes

B

Removing suspended materials

C

Complete breakdown of organic matter

D

All of the above

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Q 12. Black foot disease in humans is caused by –

Arsenic

B

SPM

C

Fluorine

D

Cadmium

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Q 13. Ozone depletion shall cause higher incidence of –

A

Skin cancers

B

Cataract

C

Decreased immunity

All of the above

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Q 14. Eutrophication of water body occur due to addition of

A

Detergents

B

Fertilisers

C

Sewage

All of the above

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Q 15. Minamata disease is due to pollution of

A

Organic waste into drinking water

B

Oil spill in water

Industrial waste mercury into fishing water

D

Arsenic into the atmosphere

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Q 16. DDT is –

A

Green house gas

B

Degradable pollutant

Nondegradable pollutant

D

None of these

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Q 17. National environmental engineering research institute is at –

A

Kanpur

Nagpur

C

Delhi

D

Madras

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Q 18. The most polluted city of the world is –

A

Newyork

Tokyo

C

Mexico

D

Kolkata

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Q 19. Green house effect is mostly due to –

A

H2

B

CO

CO2

D

N2

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Q 20. Unleaded petrol has been introduced in India with effect from –

A

First January 1996

First April 1995

C

First April 1996

D

First January 1997

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Q 21. Pollution indicator is –

A

Agrobacterium

Lichen

C

Pteridium

D

Both A and B

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Q 22. Minamata disease first occurred in –

Japan

B

Russia

C

China

D

Korea

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Q 23. Which of the following gases contributes to global warming –

A

Nitrogen dioxide

Carbondioxide

C

Carbon monoxide

D

Sulphur dioxide.

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Q 24. Eutrophication is a type of –

A

Land pollution

B

Air pollution

Water pollution

D

Noise pollution

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Q 25. Chlorofluoro carbons are air polluting agents. They are produced by –

A

Acid batteries

B

Diesel trucks

Aerosols

D

jet planes