In a biogeochemical cycle, large amounts of an element can be stored for millions of years and remain relatively untouched.Which is the best example of such a pool?
A) Carbon in rocks and fossil fuels
B) Oxygen in the atmosphere
C) Water in the atmosphere
D) Nitrogen in plant biomass
E) Sulfur in plant biomass

Question

Quizplus · Accepted Answer

Carbon stored in rocks and fossil fuels can remain relatively untouched for millions of years, making it the best example of a pool in a biogeochemical cycle. The other options listed are not as long-lasting and can be more easily cycled through different parts of the environment.

In a Biogeochemical Cycle, Large Amounts of an Element Can