Question

What do the carbon, oxygen, and nitrogen cycles all have in common

Answer 1

What carbon, oxygen, and nitrogen cycles all had in common was...

-they were all parts of a cycle

- they all include an exchange of gases with the atmosphere

Step-by-step explanation:
~they are all biogeochemical cycles~

(This means that the chemicals spend a portion of the cycle in hence and a portion in geo)

*hence= living things*

*geo= non living things*

Answer 2

They all include an exchange of gases between the atmosphere and living organisms.

Step-by-step explanation:

The carbon, oxygen, and nitrogen cycles are known as biogeochemical cycles this means that the gases spend a portion of the cycle in living things ( biological systems) and a portion in the nonliving environment (geographical systems). All the nitrogen, oxygen and nitrogen cycles involves movement of masses of gases through the atmosphere as the gases leave or enter living organisms.