Normally, the temperature decreases with the increase in height from the Earth's surface, because 1. the atmosphere can be heated upwards only from the Earth's surface 2. there is more moisture in the upper atmosphere 3. the air is less dense in the upper atmosphere Select the correct answer using the codes given below:
A1 only
B2 and 3 only
C1 and 3 only
D1, 2 and 3
Answer & Solution
Correct answer: C. 1 and 3 only
UPSC CSE Prelims 2012 (GS-I, Set A), Q.49. Answer key: C (coaching consensus; UPSC did not publish an official 2012 AK separately on upsc.gov.in).
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