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Difficulty: MediumPhysiography and Relief Features of India

Consider the following statements regarding the physical geography and relief characteristics of the Indian Island groups:

1. The Ten Degree Channel forms the maritime boundary separating the Andaman Island group from the Nicobar Island group.
2. The Lakshadweep group of islands is primarily of coral origin and is situated off the Malabar Coast in the Arabian Sea.
3. Barren Island, which hosts the only confirmed active volcano in South Asia, is located within the Nicobar group of islands.

Which of the statements given above is/are correct?

  1. 1 and 2 onlyAnswer
  2. B
    1 only
  3. C
    2 and 3 only
  4. D
    1, 2 and 3

Answer

The correct combination is 1 and 2 only.
Statements 1 and 2 are accurate. The Ten Degree Channel serves as the physical divide separating the Andaman and Nicobar groups. Lakshadweep consists of coral reef islands situated off the Malabar coast in the Arabian Sea. Statement 3 is false because Barren Island belongs to the Andaman island cluster in the Andaman Sea, not the Nicobar group.

Step-by-Step Solution

1
Evaluate Statement 1 regarding the channel dividing the island archipelagos.
Statement 1 is correct. The Ten Degree Channel separates the Andaman Islands (specifically Little Andaman) from the Nicobar Islands (specifically Car Nicobar).
Verify latitudinal water channels in the Bay of Bengal.
2
Evaluate Statement 2 regarding the origin and location of Lakshadweep.
Statement 2 is correct. Lakshadweep consists of coral islands (atolls) located in the Arabian Sea off the Malabar Coast of India.
Verify physical origin and sea basin location.
3
Evaluate Statement 3 regarding the location of India's active volcano.
Statement 3 is incorrect. Barren Island is located in the Andaman Sea approximately 138 km east of Port Blair, placing it in the Andaman group, not the Nicobar group.
Differentiate between the Andaman and Nicobar island subgroup features.

Key Concept

Physiography of Indian Islands (Andaman & Nicobar and Lakshadweep)
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Topics

Physiography and Relief Features of India

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