How did galileo revolutionize the field of astronomy?

Galileo worked on many topics in astronomy, inlcuding finding out more about the planets (Venus and Jupiter), but his biggest influence is his advocacy for a heliocentric, rather than geocentric model of the solar system (that is, at the center of the solar system is sun, rather than the earth).

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The correct answer is a. when they started making tools that will them in cultivating lands, they could raise crops and that made them attached to one place for a longer period of time. after that, they started domesticating animals and building their own permanent settlements that resemble the ones we have today.