5. Ecology and Ecosystems

Biogeochemical Cycles — Quiz

Test your understanding of biogeochemical cycles with 5 practice questions.

Practice Questions

Question 1

Which process in the carbon cycle involves the conversion of bicarbonate ions ($HCO_3^-$) into calcium carbonate ($CaCO_3$) in marine organisms?

Question 2

In the nitrogen cycle, what is the main product of the anammox (anaerobic ammonium oxidation) process?

Question 3

Which of the following processes in the water cycle is most directly responsible for the formation of groundwater storage over long periods?

Question 4

In the carbon cycle, which of the following processes leads to the formation of methane ($CH_4$) under anaerobic conditions?

Question 5

Which human activity most directly increases the amount of nitrogen oxides ($NO_x$) released into the atmosphere, affecting the nitrogen cycle?