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What is the difference between a topic and a main idea? The topic is the general subject of a paragraph or essay. Topics are simple and are described with just a word or a phrase. The main idea is a complete sentence; it includes the topic and what the author wants to say about it.
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Because unlike other scientists at his time, he believed the Earth was the center of the universe. The opposite of the geocentric model is the heliocentric, where the Sun is the center of the universe (correct model).
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can we see the claims so we can help