Question

Which of these statements is true about biogeochemical cycles?

A) in biogeochemical cycles, nutrients are not synthesized anew but are recycled in the biosphere
B) in biogeochemical cycles, nutrients are not recycled in the biosphere but are synthesized anew
C) In biogeochemical cycles, nutrients are not recycled in the biosphere but are depleted.

Answer 1

The term "biogeochemical" tells us that biological, geological and chemical factors are all involved. The circulation of chemical nutrients like carbon, oxygen, nitrogen, phosphorus, calcium, and water etc. through the biological and physical world are known as biogeochemical cycles. In effect, the element is recycled, although in some cycles there may be places (called reservoirs) where the element is accumulated or held for a long period of time (such as an ocean or lake for water)

Hence, the correct option is A