4. Chemical Oceanography

Marine Biogeochemistry — Quiz

Test your understanding of marine biogeochemistry with 5 practice questions.

Practice Questions

Question 1

Which of the following elements is a crucial component of marine organic matter and is cycled through photosynthesis and respiration?

Question 2

What is the primary process by which dissolved inorganic carbon is converted into organic carbon by marine autotrophs?

Question 3

Which of the following is a major reservoir for nitrogen in the marine environment, primarily in its gaseous form?

Question 4

The process of converting ammonium ($\text{NH}_4^+$) to nitrite ($\text{NO}_2^-$) and then to nitrate ($\text{NO}_3^-$) by bacteria in the ocean is known as:

Question 5

In the marine phosphorus cycle, what is the primary form of phosphorus assimilated by phytoplankton?