What part of the geocentric model was incorporated in the heliocentric model?

A. Earth is the center of the solar system.

B. The sun is the center of the solar system.

C. A central body is the center of the universe.

D. Bodies in space move randomly around a central body.

C. A central body is the center of the universe.

Explanation:

The geocentric model had earth at the center and all the planets revolving around it. Astronomers later realized this was not correct and created the Heliocentric model, which stated that the Sun was the center of our solar system. Nonetheless, they both shared something in common - one central body in the center of the universe.

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answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.