Question

MEDALS!! Biogeochemical cycles on Earth serve a variety of different purposes. What do the biogeochemical cycles have in common?
a.
They all serve the same function in sustaining life on Earth.
b.
They all include only nonliving components of an ecosystem.
c.
They are all essential for sustaining life on Earth.
d.
They all include only living components of an ecosystem.

Answer 1

I think the answer is C but im not sure I will do some more research.

Answer 2

I mean all the cycles like nitrogen cycle, carbon cycle, and water cycle they are needed to keep life on earth.

Answer 3

Was I right?

Answer 4

Yes thank you

Answer 5

:D ok good np

Answer 6

Have a great day.