Question

Near the earth’s surface __________air rises up whereas ___________ air comes down. Fill in the blank.

Answer 1

(1)Hot(2)cold

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Answer 2

"Near the earth’s surface hot air rises up whereas cold air comes down.

We know that hot air is lighter so it always moves in the upward direction. Cold air being heavy is unable to move in the upward direction.

So it comes in the downward direction to take up the space created by the shifting of the hot air.

"