Question

over two thousand years ago, plato believed that all motion in the universe is made up of circles turning at uniform rates, an idea called uniform circular motion. his student, aristotle, believed in the __ at the center. both models do have similarities. what do both models have in common? a geocentric; sun b heliocentric; sun c geocentric; earth d heliocentric; earth a both models contain the sun, earth, and moon. b earth is the center of the other revolving planets in both. c they both suggest that the moving sun is the reason we have the seasons. d they both say that the sky is a fixed celestial sphere that rotates over the earth.

Explanation:

Los modelos geocéntrico y heliocéntrico son dos conceptos importantes en la astronomía. El modelo geocéntrico plantea que la Tierra es el centro del universo y los demás cuerpos celestes giran alrededor de ella. El modelo heliocéntrico sostiene que el Sol es el centro y la Tierra y los demás planetas giran alrededor de él. Ambos modelos consideran que el cielo es una esfera celeste que gira.

Answer:

A. They both say that the sky is a fixed celestial sphere that rotates over the Earth.