What is the percentage of oxygen in the earth crust outer composition ........

Agriculture and Rural Development (Phase-I/II) Soil and Water Conservation

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What is the percentage of oxygen in the earth crust (outer) composition?

46.6 percent (47%)

25%

10%

12%

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Explanation:

According to "Essentials of Geology" (7th Ed., Prentice Hall, 2000) by Frederick K. Lutgens and Edward J. 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.