Question

Which molecule is most common in the human body?

A. H2O
. B. N₂
C. H₂
D. CO2

Answer 1

H2O…. Humans make up 70% water

Answer 2

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!