3. What was the foundation of Ptolemy's geocentric model of the universe?

The geocentric model stated that Earth was the center of the universe, and all other bodies revolved around it

Explanation:

In astronomy, the geocentric model (also known as geocentrism, often exemplified specifically by the Ptolemaic system) is a superseded description of the Universe with Earth at the center. Under the geocentric model, the Sun, Moon, stars, and planets all orbited Earth.

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