Most photosynthesis in the open ocean occurs in the ____.

Question

Quizplus · Accepted Answer

The euphotic zone is the top layer of the ocean where sunlight can penetrate, allowing for photosynthesis to occur. This zone extends to a depth of about 200 meters in most areas of the open ocean. The other zones listed (abyssal, bathyal, benthic) are too deep for sunlight to penetrate and thus photosynthesis cannot occur there. The estuarine zone describes areas where freshwater and saltwater mix, which is not representative of the open ocean environment.

Most Photosynthesis in the Open Ocean Occurs in the ____