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GS Geography Physical Geography of World
Q.

Which of the following is the most abundant metal on Earth’s crust?

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Explanation:

ANS. (D) 
Aluminum is the most abundant metal in the Earth’s crust, and the third most abundant element therein, after oxygen and silicon. It makes up about 8% by weight of the Earth’s solid surface. Earth’s crust occupies less than 1% of Earth’s volume. Oxygen is 46.6%, Silicon 27.77%, Aluminum is 8.09% and Iron is 5%.

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