Question

What characteristic of air in the lower atmosphere helps regulate temperatures on Earth?

Α. Air prevents heat in the form of radiation from striking Earth's surface.
B. Air liquefies when heated, thus cooling the surface.
C. Air contracts when heated and descends to Earth's surface.
D. Air expands when heated and rises into the atmosphere.

Answer 1

D. Air expands when heated and rises into the atmosphere.

Step-by-step explanation:

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Answer 2

Answer: D.

Air expands when heated and rises into the atmosphere.

Explanation: The conventional movement of air allows heated air float into the atmosphere and replaced by the cooling air.

Air expands when heated and rises into the atmosphere. The risen air is replaced by the cooling one thus help in maintaining and regulating the earth temperature.