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Kisachek [45]
2 years ago
15

Which two elements make up the most

Biology
1 answer:
Dmitriy789 [7]2 years ago
7 0

Answer:

C. H and O

Explanation:

Almost 99% of the human body's mass is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus, in that order.

Element   Symbol   % in body

Oxygen       O              65.0

Coal             C               18.5

The human body is composed of 60% water, that is, H2O.

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