Multiple Choice
Which effect most likely causes astronauts to become nauseated in space?
A) Their vestibular system cannot tell which way is down.
B) Their bodies' kinesthetic perception is thrown off by the lack of gravity.
C) Their visual system has trouble adjusting to seeing things floating and flying.
D) Their brains are being bombarded by cosmic rays.
Correct Answer:

Verified
Correct Answer:
Verified
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