Question

A coral island with a central shallow lake is known as [BHU 2001]
A) Coral reef
B) Atoll
C) Corallite
D) Diatomaceous sheath

Answer 1

☺️☺️ hey mate,
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Question:

A coral island with a central shallow lake is known as [BHU 2001]
A) Coral reef
B) Atoll
C) Corallite
D) Diatomaceous sheath

Answer:
B) Atoll reefs.
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thanks ☺️☺️

Answer 2

A coral island with a central shallow lake is known as Atoll.

• An island or a coral reef, or a unique series of islets which are shaped like a distinct ring are known as atolls.  
• An atoll encircles a lagoon considered as a water body.
• Atolls and lagoons frequently help to shield a central island.
• The world's largest atoll is the Kiritimati Atoll, on the Northern Line Islands, Pacific Ocean.