GEOLOGY

Detailed explanation-1: -The neritic zone (or sublittoral zone) is the relatively shallow part of the ocean above the drop-off of the continental shelf, approximately 200 meters (660 ft) in depth.

Detailed explanation-2: -The neritic zone is the region of shallow water (200 meters depth) above the continental shelf where light penetrates to the sea floor. Due to the abundant supply of sunlight and nutrients in this zone, it is the most productive ocean zone supporting the vast majority of marine life.

Detailed explanation-3: -Below the epipelagic zone is the mesopelagic zone, extending from 200 meters (660 feet) to 1, 000 meters (3, 300 feet). The mesopelagic zone is sometimes referred to as the twilight zone or the midwater zone as sunlight this deep is very faint.

Detailed explanation-4: -Epipelagic zone (ocean surface to 200 meters deep). This is the zone in which photosynthesis can occur, because light is available. Mesopelagic zone (200-1, 000m)-This is also known as the twilight zone, because light becomes limited. There is less oxygen available to organisms in this zone.

Detailed explanation-5: -The continental shelf is an area of relatively shallow water, usually less than a few hundred feet deep, that surrounds land. It is narrow or nearly nonexistent in some places; in others, it extends for hundreds of miles.