What are the four most abundant elements in a human body?
A)C,N,O,H
B)C,N,O,P
C)C,S,O,H
D)C,Na,O,H
E)none of the above

Name: What are the four most abundant elements in a human body? A)C,N,O,H B)C,N,O,P C)C,S,O,H D)C,Na,O,H E)none of the above
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Question

Quizplus · Accepted Answer

The four most abundant elements in a human body are carbon (C), nitrogen (N), oxygen (O), and hydrogen (H), forming about 99% of the total atoms in the body. Therefore, choice A is the correct answer.

What Are the Four Most Abundant Elements in a Human