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Question
Low clouds retard surface cooling at night better than clear skies because:
Options:
A .  The clouds absorb and radiate infrared energy back to earth
B .  The water droplets in the clouds reflect infrared energy back to earth
C .  The clouds start convection currents between them
D .  The clouds are better conductors of heat than is the clear night air
E .  The formation of the clouds releases latent heat energy
Answer: Option A

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