Together, three natural elements make up 99% of the Earth's biomass. Which of the following is not one of those three elements?
A) oxygen (O)
B) hydrogen (H)
C) nitrogen (N)
D) carbon (C)

Question

Quizplus · Accepted Answer

The three natural elements that make up 99% of the Earth's biomass are carbon, hydrogen, and oxygen. Nitrogen is an important element for living organisms, but it is not as abundant in biomass as these three elements.

Together, Three Natural Elements Make Up 99% of the Earth's