Multiple Choice
Why is it difficult for "weightless" astronauts in space to know whether they are right side up or upside down?
A) Maculae that report head position depend upon the gravitational pull on the otoliths.
B) Sunrise and sunset are no longer linked to a 24-hour day.
C) They can't see a horizon.
D) The direction in which they are traveling changes rapidly.
Correct Answer:
Verified
Correct Answer:
Verified
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