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Question

According to percentage weight arrange the following in descending order in the earth crust ?

A
O2,Ca,Mg,S
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B
O2,S,Mg,Ca
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C
S,Ca,Mg,O2
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D
Ca,O2,Mg,S
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Solution

The correct option is B O2,Ca,Mg,S
Oxygen is present in maximum concentration in earth's crust while s has less abundance,
So, abundance of availability of elements O2>Ca>Mg>S.

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