In which zone does most of the photosynthesis in the open sea occur?

Question

Quizplus · Accepted Answer

Most photosynthesis in the open sea occurs in the euphotic zone, which is the layer of the ocean that receives enough sunlight for photosynthesis to occur. This zone is typically found near the surface of the water, and is where most of the ocean's planktonic organisms live and perform photosynthesis. The coastal zone, bathyal zone, and abyssal zone are all deeper zones that receive less sunlight, and are less productive in terms of photosynthesis.

In Which Zone Does Most of the Photosynthesis in the Open