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Question
The atmosphere of the earth is heated by radiations which are mainly
Options
radiated by the sun
re-radiated by land
re-radiated by water
re-radiated by land and water
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Solution
re-radiated by land and water
Explanation:
The heating of air occurs due to the re-radiation of solar radiation by land and water bodies. In fact, when the solar radiations fall on the earth, some are absorbed and the majority of these are reflected back or re-radiated by land and water bodies. These reflected or re-radiated solar radiations heat up the atmosphere.
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