EASY
Earn 100

Which of the following gases is not a greenhouse gas?

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Important Questions on Pollution of Air and Water

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In resonance hybrid of ozone molecule, O-O bond length is
MEDIUM
 “A lot of indiscriminate activities of humans pollute the environment”- Support the statement by giving three examples in favour of it. Give examples of a national park and a biosphere reserve in West Bengal.
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Which radiation coming from the sun, is prevented by the Ozone layer from falling on the earth’s surface?
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Single Matching. Match the articles of column I and column II 

Column I Column II
(a) Carbon dioxide (i) Bacteria
(b) Nitrogen fixation (ii) ODS (Ozone depletion substances )
(c) CFCs (Chlorofluorocarbons) (iii) GHG (Greenhouse gas)
(d) Decomposers (iv) Fossil fuel
(e) Oxides of nitrogen and sulphur (v) Mineralization
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Which of the factors leads to an increase in the amount of carbon dioxide
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Name the different greenhouse gases.
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What is 'greenhouse effect'? State its importance for us.
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‘Greenhouse effect’ is produced by the presence of
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The average temperature of the earth's atmosphere is gradually increasing. This is called _____.

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_____ is a greenhouse gas released by grass-eating animals.
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_____ is a natural gas that causes the greenhouse effect. (Methane/Oxygen)
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Carbon dioxide, which is released when fuels are burned, is a _____ gas.
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Which of the following is not a greenhouse gas?
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Water vapour is not a greenhouse gas.
MEDIUM
Carbon dioxide is a greenhouse gas.
EASY
Name two greenhouse gases? Which one of them produces the maximum greenhouse effect?