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OpenStudy (anonymous):

Help please!!!!!! What are 4 similarities and 4 differences of a historical and a current solar system model?

OpenStudy (anonymous):

remember the heliocentric and the geocentric models of the solar system heliocentric- today's model of the solar system with the sun in the middle of the solar system geocentric- people in the past thought that the earth was in the middle of the solar system

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