alleryStart learning →Which ocean zone begins at a depth of 4000 m?
AThe neritic zone
BThe photic zone
CThe intertidal zone
DThe abyssal zone
Answer & Solution
Correct answer: D. The abyssal zone
1. The intertidal zone is the strip between high and low tide, closest to land.
2. The neritic zone runs from there out to about 200 m at the edge of the continental shelf.
3. The abyssal zone is the deepest part, starting at 4000 m.
4. It is very cold, under very high pressure, and holds no plants because no light arrives.
_Source: OpenStax Biology 1e (CC BY 4.0), Chs 44 and 46, section 44.4 Aquatic Biomes_
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