Which of the following statements about biogeochemical cycles is not true?
a. biogeochemical cycles include living and nonliving elements.
b. the rock cycle is a biogeochemical cycle.
c. biogeochemical cycles are an important part of the earth system.
d. carbon, nitrogen, and oxygen cycles are biogeochemical cycles.

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.

explanation:

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.