The geocentric model could not explain which of the following observations made by early astronomers? Select the two correct answers.(1 point)

Question

Responses

The planets had epicycles.
The planets had epicycles.

Mars and Jupiter appeared to move backwards for some period of time.
Mars and Jupiter appeared to move backwards for some period of time.

Mercury and Venus changed in appearance throughout the year.
Mercury and Venus changed in appearance throughout the year.

The stars appeared to move.

Answer 1

The two correct answers that the geocentric model could not explain are:

1. Mars and Jupiter appeared to move backwards for some period of time.
2. Mercury and Venus changed in appearance throughout the year.

These observations were difficult to reconcile with the geocentric model, leading to the development of more accurate heliocentric models of the solar system.