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The warm and light air which rises up due to land heat will return in one form or another. Explain.
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Explanation: Hot air rises because when you heat air (or any other gas for that matter), it expands. ... The less dense hot air then floats in the more dense cold air much like wood floats on water because wood is less dense than water.
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upper answer is given is right....so get extra knowledge
Explanation:
The two boys followed muddy footprints being made fresh without seeing anybody making the prints, which was a 'mystery' for them. The explanation was that the bewildered boys had been following a scientist who had just discovered how to make the human body transparent, and thus invisible, by swallowing certain drugs.
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