In total,how much of earths crust is made up of oxygen and silicon

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20-10-2017
Social Studies

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In total,how much of earths crust is made up of oxygen and silicon

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Аноним Аноним · Answer 1 · 2017-10-20T22:57:39+02:00

Аноним Аноним

20-10-2017

Earth's crust is made up of several elements: oxygen, 46.6 percent by weight; silicon, 27.7 percent; aluminum, 8.1 percent; iron, 5 percent; calcium, 3.6 percent; sodium, 2.8 percent, potassium, 2.6 percent, and magnesium, 2.1 percent. hope that helped

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