Does most ocean life live at the top or bottom of ocean?

The vast majority of ocean life lives in the photic zone, which is the top 200 meters of the ocean where sunlight can penetrate. This is because sunlight is essential for photosynthesis, the process by which plants and algae produce food. However, there is also a significant amount of life in the deep sea, which is the part of the ocean below 200 meters. The deep sea is home to a variety of creatures that have adapted to the extreme conditions, such as high pressure, cold temperatures, and lack of light.