The ocean is divided into distinct zones of marine life. Which three factors are

used to define the zones?

Three factors are used.

The availability of sunlight.

The distance from shore and

The water depth.

Explanation:

Availability of Sunlight

The photic zone is the upper part of the ocean into which sunlight penetrates.

Distance from Shore

The intertidal zone is the strip of land where the land and ocean meet and overlap, or the zone between high and low tides.

The neritic zone is the marine-life zone that extends from the low-tide line out to the shelf break.

The oceanic zone is the marine-life zone beyond the continental shelf.

Water Depth

The pelagic zone is open zone of any depth. Animals in this zone swim or float freely.

The benthic zone is the marine-life zone that includes any sea-bottom surface regardless of its distance from shore.

The abyssal zone is a subdivision of the benthic zone characterized by extremely high pressures, low temperatures, low oxygen, few nutrients, and no sunlight