What is a piece of land completely surrounded by water called?
a) Peninsula
b) Island
c) Isthmus
d) Cape
Answer: b) Island
Explanation
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Island: An island is a sub-continental piece of land that is completely surrounded by water on all sides.
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Categories:
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Continental Islands: Sit on a continental shelf (e.g., Sri Lanka, Great Britain).
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Oceanic Islands: Formed by volcanic activity arising from the ocean floor (e.g., Andaman and Nicobar Islands).
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Coral Islands / Atolls: Formed from coral debris and organic deposits built up on submerged volcanic structures (e.g., Lakshadweep).
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River Islands: Formed within river courses by silt deposition (e.g., Majuli in the Brahmaputra River, Assam—the world’s largest inhabited river island).
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Overview of Other Options
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a) Peninsula: A piece of land surrounded by water on three sides and connected to the mainland on one side (e.g., Peninsular India).
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c) Isthmus: A narrow strip of land connecting two larger landmasses and bordered by water on two sides (e.g., Isthmus of Panama).
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d) Cape: A high point of land or promontory that extends sharply into a river, lake, or ocean (e.g., Kanyakumari / Cape Comorin).
