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22-10-2017
Biology

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Oxygen comprises about ________ percent by weight of earth's continental crust

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Аноним Аноним

22-10-2017

Hello There!

Oxygen compromises about 47 percent by weight of earth's continental crust.
Another important element is silicon.
Continental crusts are older and less dense when compared to the oceanic crust.

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- Hannah ❤

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