How would a tall tree in a mountain be related to gas exchange?

How would gas exchange be affected at the top of a tall mountain, where air pressure is lower and there is less oxygen than at lower elevations? Explain.How would a tall tree in a mountain be related to gas exchange?trees can't survive on a mountain beacuase trees need carbon dioxide and becuase the most mamamls dont live in the mountains becuase of low oxgen levels there is less carbon dioxide. As a result, there wouldnt be mush gas exchange and the tree most likely would die. People who live in the mountains have more red blood cells

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