Chemistry, 19.05.2021 20:40 fredericksppeedddf

A planets ability to support life is partly determined by its orbit around the sun which is a result of the combination of the planets momentum and the suns

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Chemistry, 21.06.2019 22:00

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Chemistry, 22.06.2019 17:10

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Chemistry, 22.06.2019 17:50

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Chemistry, 22.06.2019 19:40

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