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decreases with decreased

Explanation:

Altitude is height above sea level.

The density of air decreases with height.

At higher altitudes, there is less air pushing down from above, and gravity is weaker farther from Earth's center.

So at higher altitudes, air molecules can spread out more, and air density decreases

I believe it is the first one

what's the rest of the question

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.