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Why would you have trouble breathing at high altitudes? A. it is colder at the top of a mountain B. the oxygen molecules are spread farther apart C. the oxygen molecules are closer together
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Why would you have trouble breathing at high altitudes?

A. it is colder at the top of a mountain
B. the oxygen molecules are spread farther apart
C. the oxygen molecules are closer together

User Andy Cribbens
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1 Answer

2 votes

Answer:

A. It is colder at the top of a mountain

Step-by-step explanation:

User Jessica Nowak
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