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UPSC Civil ServicesPrelims2023General Studies Paper I
Question
QQ62. With reference to the Earth's atmosphere, which one of the following statements is correct?
Options
- A The total amount of insolation received at the equator is roughly about 10 times of that received at the poles.
- B Infrared rays constitute roughly two-thirds of insolation.
- C Infrared waves are largely absorbed by water vapour that is concentrated in the lower atmosphere.
- D Infrared waves are a part of visible spectrum of electromagnetic waves of solar radiation.
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Correct Answer
C Infrared waves are largely absorbed by water vapour that is concentrated in the lower atmosphere.
Model Answer
Answer: option C, as per UPSC's final answer key (Series A).