Correct sequence of abundance of elements in the human body is

C a > S > M g > H

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N > C a > H > S

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M g > N a > S > H

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C > H > N > S i

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Solution

The correct option is D $C > H > N > S i$
A. C>H>N>Si
Explanation : Carbon is the basis of all organic molecules and second largest element in the body. Carbon contain 18% of body weight. Hydrogen contain 10%. nitrogen contain approximately 3% of the human body. Nitrogen gas present in lungs. In the human body Si abundance is 0.20% to 0.25%. Si is present in keratin.
So, the correct answer is option A. C>H>N>Si

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