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

1 answer:

8 0

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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Answer:

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Explanation:

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An option...
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