Which of the statements below is part of both the Ptolemaic and Copernican models?
A)The Earth orbits the Sun once a year.
B)The Sun lies in the center of the Cosmos.
C)The Moon orbits the Earth once a month.
D)Epicycles are needed to explain retrograde motion of the planets.
E)Venus's epicycle must always lie between us and the Sun.

Question

Quizplus · Accepted Answer

Both the Ptolemaic and Copernican models include the idea that the Moon orbits the Earth once a month. Option A is only part of the Copernican model, while options B, D, and E are part of the Ptolemaic model.

Which of the Statements Below Is Part of Both the Ptolemaic