Question

The ocean is the largest reservoir of carbon on Earth. Which of the following would most likely store carbon for the longest amount of time?

Question 6 options:

Calcium carbonate shells of marine organisms, like coral, oysters, and clams


Dissolved CO2 in surface ocean water


Dissolved CO2 in deep ocean water


Carbon stored in the rocks

Answer 1

Answer: Carbon stored in the sedimentary rocks that form on the ocean floor

Explanation: I took the quiz and got it right :)