Multiple Choice
The greatest inaccuracy in Copernicus's theory of the solar system was that he
A) placed the planets in circular orbits.
B) placed the planets on epicycles,the centers of which followed orbits around Earth.
C) did not allow for retrograde motion.
D) assumed that the planets move in elliptical orbits with constant speeds rather than variable speeds.
Correct Answer:
Verified
Correct Answer:
Verified
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