in which form is carbon stored in the ocean?

as carbonate minerals in shells and coral reefs.
carbon dioxide gas dissolved in sea water.
as organic matter in the form of dead organisms.
as dissolved carbonic acid.
what process returns carbon to the atmosphere from the ocean ?
ocean acidification
coral bleaching
ocean upwelling
carbonation

The correct answers are:

1. Carbon is stored in the ocean as:
- Carbonate minerals in shells and coral reefs.
- Carbon dioxide gas dissolved in seawater.
- Organic matter in the form of dead organisms.
- Dissolved carbonic acid.

2. The process that returns carbon to the atmosphere from the ocean is:

- Ocean upwelling.