Answer:
Option A.
Organisms in the deepest part of the ocean come up to the surface to breath.
Step-by-step explanation:
- Abyssal zone is the part of the ocean towards the bottom. It consists of 83% of the ocean.
- The zone is completely dark. There is no sunlight striking this zone so the organisms which require sunlight are not found here.
- The organisms like sharks and deep sea fish in this zone have to reach above them for breathing dissolved oxygen as this zone has no such plants to produce oxygen.