What is biogeochemical cycle?

Question

In my notes, this is what I have so far: Nutrient circuits involving both abiotic and biotic component of ecosystems.

Is there anything I should add? My understanding is still a bit blurry. Thanks!

Answer 1

This is why we have Google.  There is a thorough explanation on wikipedia.  I am not sure what academic level you are (college or HS) so i am not sure how detailed you want an explanation.  So follow the link below and see for yourself.

Answer 2

the cycle in which nitrogen, carbon, and other inorganic elements of the soil, atmosphere, etc. of a region are converted into the organic substances of animals or plants and released back into the environment