Question

What is the importance of the carbon and nitrogen cycles to ecosystems?

A.
They supply the energy needed for living processes.


B.
They are needed to release the energy stored in food.


C.
They provide materials organisms need to build their bodies.


D.
They ensure that matter only moves within a nonliving environment.

Answer 1

C.They provide materials organisms need to build their bodies.

Explanation: I took the test

Answer 2

The correct answer is C. They provide materials organisms need to build their bodies

They are all around us and are essential for all things organic, which means all life forms. They are also important for the creation of energy.