Multiple Choice
How do nearly all spiral galaxies rotate?
A) The arms lead as the galaxy rotates (the arms point forward) .
B) Spiral galaxies do not rotate; if they did, the spiral pattern would soon disappear.
C) Astronomers do not know; spiral galaxies rotate far too slowly for them to have seen any motion in the time since galaxies were discovered.
D) The arms trail as the galaxy rotates (the arms point backward) .
Correct Answer:
Verified
Correct Answer:
Verified
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