Which of the following statement is incorrect?
A) All the elements present in a sample of earth crust are also present in sample of living tissue.
B) Relative abundance of carbon and hydrogen with respect to other element is higher in any living organism than in
the earth's crust.
C) Living organisms have more nitrogen and oxygen per unit mass than in the earth's crust.
D) Living organisms have more Ca, Mg, Na in them than in the earth's crust.
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Answer:
1 false 2 true 3 true 4 true
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Answer: (A) is incorrect
Explanation: earth's crust contains a lot of silicon and we do not contain silicon in a living tissue
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