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The question being tested is whether or not the human body will produce more red blood cells at higher altitudes.
The hypothesis an athlete would create from this question is that the body will produce more red blood cells at a higher altitude to ensure the pumping of oxygen throughout the body.
The answer is texting and driving
Messengers delivered letters because they had No Postal system
Answer:
lifted large numbers of poor people out of poverty
helped many nonpoor people avoid the poverty
hunger they would have experienced had the Green Revolution not occurred.
Explanation:
