Review the graphic and select the best response based on that data.

Question

a
By mass, humans are mostly oxygen.
b
By volume, humans are 10% hydrogen.
c
Humans are mostly water.
d
Elements making up the human body are worth about $600.

Answer 1

The best response based on the data about the composition of the human body is:

c. Humans are mostly water.

This statement is accurate, as water is a major component of the human body, making up about 60% of an adult's body weight. While statement a may also be correct in terms of the chemical composition of the body, it is not as straightforward or commonly understood as statement c.