What zone is known as the abyss?

What zone is known as the abyss?

• A. Abyss
• B. Abyssopelagic zone
• C. Hadopelagic zone
• D. Bathypelagic zone

Answer: (B)

In ocean depth zoning, the deepest open-water band is called the abyssopelagic zone. This zone sits roughly from about 4,000 to 6,000 meters below the surface, the region often referred to as the abyss because of its extreme darkness, high pressure, and cold temperatures. The term “abyss” here names this deep, dark part of the open ocean, so it’s the abyssopelagic zone. Shallower pelagic zones—bathypelagic (about 1,000–4,000 m) and hadopelagic (trenches beyond 6,000 m)—are distinct and not what is meant by the abyss.

In ocean depth zoning, the deepest open-water band is called the abyssopelagic zone. This zone sits roughly from about 4,000 to 6,000 meters below the surface, the region often referred to as the abyss because of its extreme darkness, high pressure, and cold temperatures. The term “abyss” here names this deep, dark part of the open ocean, so it’s the abyssopelagic zone. Shallower pelagic zones—bathypelagic (about 1,000–4,000 m) and hadopelagic (trenches beyond 6,000 m)—are distinct and not what is meant by the abyss.