Question

Nights are cooler in the deserts than in the plains because ___________.

• A. sand radiates heat more quickly than the earth
• B. the sky remains clear most of the time
• C. sand absorbs heat quickly than the earth
• D. None of the above

Answer 1

Answer: (A)

sand radiates heat more quickly than the earth

Sand absorbs as well as radiates heat more quickly than the earth. Thus at night, temperature of sand decreases at a much faster rate making the surrounding cooler in deserts.