Seudónimo Seudónimo
  • 08-06-2017
  • Chemistry
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does the percentage of oxygen in the air decrease as altitude increases

PLZ HELP ASAP 20pts

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Аноним Аноним
  • 18-06-2017
Yes it does. The higher up in the air you go, the harder it is to breathe. That is why it is hard to climb mountains.
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