Why do you think it was so difficult to treat patients at 21 000 feet of altitude?

The reason why it’s difficult to treat patients at 21,000 feet altitude is because of the lack of oxygen. The higher altitude you go up, the less oxygen there is available. Trees are what give us oxygen, so being elevated will bring us far from the trees. And since we need oxygen to survive, the patients won’t recover as quickly, as their main living source is not with them, oxygen.

Explanation:

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