Question

what is the composition of earth's crust ​

Answer 1

Answer:

Tarbuck, 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.

Explanation:

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Iᖴ ՏO..........

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Answer 2

Answer:

They will vary depending on the way they were calculated and the source. 98.4% of the Earth's crust consists of oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium. All other elements account for approximately 1.6% of the volume of the Earth's crust .

Explanation: