chapter 7 Heat Transfer in Nature - Part 6

Why are cloudy nights warmer than clear nights?

Type: MCQ • Marks: 1
Why are cloudy nights warmer than clear nights?
Options
A. Clouds radiate heat from space
B. Cloud wind speed
C. Clouds decrease atmospheric pressure
D. Clouds trap heat radiated by the Earth back toward the ground
Explanation
Clouds act as an insulating blanket that reflects terrestrial thermal radiation back to the Earth's surface.
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