At a constant pressure, how does hot air vary with cold air? Hot air ______. A. is less dense than cold air C. has less vapor than cold air B. is more dense than cold air D. has more vapor than cold air
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Answer:
A..
Explanation:
A is the correct answer because hot air is less than a cold air, which is why hot air rises and cold air sinks, according to the United States Department of energy.
thanks for the question!