GENERAL KNOWLEDGE

GK

WORLD GEOGRAPHY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The term ‘Abyssal refers to
A
inner most part of the earth
B
organism found in the shallow water zone of the seas
C
deeper parts of the oceans
D
None of the above
Explanation: 

Detailed explanation-1: -An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3, 000 metres (9, 800 ft) and 6, 000 metres (20, 000 ft). Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% of the Earth’s surface.

Detailed explanation-2: -The Abyssopelagic Zone (or abyssal zone) extends from 13, 100 feet (4, 000 meters) to 19, 700 feet (6, 000 meters). It is the pitch-black bottom layer of the ocean. The name (abyss) comes from a Greek word meaning “no bottom” because they thought the ocean was bottomless.

Detailed explanation-3: -The HROV Nereus has successfully reached the abyss: the deepest part of the world’s oceans.

Detailed explanation-4: -The seafloor and water column from 3, 000 to 6, 500 meters (9, 842 to 21, 325 feet) depth is known as the abyssal zone, or the abyss. Sunlight doesn’t penetrate to these depths, so the waters here are extremely dark, and the animals that live here often use bioluminescence to communicate.

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