Name the metal which is most abundant on the earth's crust.

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Aluminium

Copper

Bismuth

Tin

answer is A.

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Detailed Solution

Concept- The elements oxygen, silicon, aluminium, iron, and many others make up the crust of the Earth. Knowing the proportion of these elements that contribute to the development of the earth's crust allows one to identify the element that makes up the earth's crust and which metal is the most plentiful in the crust.
The following substances make up the earth's crust:
oxygen makes up 40.6% of the composition, silicon 27%, aluminium 8.9%, and iron 5%.
Calcium, at 3.6 per cent, is next, followed by sodium, potassium, magnesium, and other elements.
This composition makes it abundantly evident that aluminium, which is the third most common element in the crust after silicon and oxygen, is the most prevalent metal there. Aluminum is the metal that is most prevalent in the crust of the earth.
Hence, the correct answer is option 1.

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