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4 votes
The four essential elements for life are

a.
carbon, hydrogen, oxygen and nitrogen
b.
carbon, hydrogen, oxygen and sulfur
c.
carbon, nitrogen, oxygen and sulfur
d.
iron, nitrogen, oxygen and magnesium

2 Answers

6 votes

A. carbon, hydrogen, oxygen and nitrogen
These four elements make up almost 96% of the human body.

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User Letha
by
7.6k points
4 votes
The answer is a
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User Yetty
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