A) The geocentric model could not explain which of the following observations made by early astronomers? Select the two correct answers. (1 point)
The planets had epicycles.
Mercury and Venus changed in appearance throughout the year.
The stars appeared to move.
Mars and Jupiter appeared to move backwards for some period of time.
The correct answers are:
1) The planets had epicycles.
4) Mars and Jupiter appeared to move backwards for some period of time.