Question

an early scientist proposed a model of the solar system where the sun was positioned at the center, with the earth and other planets revolving around it. which scientist held this belief? a. nicolaus copernicus b. aristotle c. galileo d. ptolemy

Explanation:

Nicolaus Copernicus proposed the heliocentric model, where the Sun is at the center. Aristotle supported a geocentric model. Galileo supported Copernicus' model but didn't propose it. Ptolemy also had a geocentric model.

Answer:

A. Nicolaus Copernicus