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In a closed or isolated system , matter can not be created or destroyed. it can change forms but is conserved true or false
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About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?
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Which scenario is most similar to the type of collision that gas particles have according to kinetic molecular theory
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Wny do we use the unit light years...
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