Question

when the air cools; its density:



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Answer 1

Answer:

✨When the air cools, its density increases.

Explanation:

✨Beacause the volume of air is decreases that why the density increases.

Answer 2

Answer:

This happens because the mass of the rod stays the same, but its volume increases. The increase in the volume of matter with increasing temperature is called expansion. When cooled down, most matter decreases in volume and increases in density. This decrease in volume is called contraction.

Explanation:

10th standard