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Which molecule is most common in the human body?

A. H2O
. B. N₂
C. H₂
D. CO2

User Howy
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2 Answers

2 votes
H2O…. Humans make up 70% water
User Olivier Tassinari
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Answer:

A. H2O

Step-by-step explanation:

The most common molecule in the human body is H2O. H2O makes up about 50-70% of the body's total weight.

Remember, the meaning for H2O is a transparent, colorless, and odorless liquid.

Hope this helps!

User SkyzohKey
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