Read the following statements:

(A) Oxygen is the most abundant element in the earth’s crust.

(B) Percentage weight of nitrogen is more in earth’s crust than human being.

(C) Silicon is the second most abundant element in earth’s crust .

(D) Percentage weight of hydrogen is more in human body than earth’s crust.

Which of the above statements are correct ?

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A and C only

A and D only

B and C only

A, C and D

answer is D.

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Detailed Solution

Oxygen accounts for 46.6% of earth’s crust, nitrogen is negligible in earth’s crust and it is 3.3% in human body, Silicon is the next to oxygen in abundance in soil (27.7%) and hydrogen is 0.5% in human body and in earth’s crust 0.14% by weight.

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