Multiple Choice
Evidence for the existence of dark matter includes ________.
A) the observation that Mercury rotates about the Sun faster than Pluto
B) the observation that the universe is not expanding as fast as predicted by Big Bang Theory
C) the observation that stars near the center of galaxies do not rotate as fast as expected
D) the observation that the universe appears to be slowing down
Correct Answer:

Verified
Correct Answer:
Verified
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