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Question

The atmosphere of the earth is heated by radiations which are mainly

A
radiated by the sun
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B
re-radiated by land
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C
re-radiated by water
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D
re-radiated by land and water
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Solution

The correct option is D re-radiated by land and water
Earth absorb radiation from sun, and then try to transmit it back to atmosphere, but atmosphere absorb very selective gas as a result of which the gas radiated get back to earth resulting in increase in temperature.

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