Island Groups of the Bay of Bengal

1. Which one of the following are separated by Ten Degree channel ?

Which one of the following are separated by Ten Degree channel ?

Car Nicobar and Little Nicobar
Little Andaman and Middle Andaman
Car Nicobar and Little Andaman
Little Andaman and Great Nicobar
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UPSC CISF-AC-EXE – 2022
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The Ten Degree Channel separates the Andaman Islands from the Nicobar Islands. Specifically, it separates Little Andaman Island (southernmost island of the Andaman group) from Car Nicobar Island (northernmost island of the Nicobar group).
– The channel is named after the 10-degree line of latitude, although it is slightly north of it.
– It is a significant maritime route in the Bay of Bengal.
Other important channels in the region include the Duncan Passage (separating Great Andaman and Little Andaman) and the Great Channel (separating Great Nicobar from Sumatra, Indonesia).

2. Consider the following statements : 1. The Barren Island volcano is

Consider the following statements :

  • 1. The Barren Island volcano is an active volcano located in the Indian territory.
  • 2. Barren Island lies about 140 km east of Great Nicobar.
  • 3. The last time the Barren Island volcano erupted was in 1991 and it has remained inactive since then.

Which of the statements given above is/are correct ?

1 only
2 and 3
3 only
1 and 3
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UPSC IAS – 2018
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The correct answer is A) 1 only.
Let’s evaluate each statement about Barren Island volcano:
1. **The Barren Island volcano is an active volcano located in the Indian territory:** This statement is correct. Barren Island is India’s only active volcano and is located in the Andaman Sea, part of the Union Territory of Andaman and Nicobar Islands.
2. **Barren Island lies about 140 km east of Great Nicobar:** This statement is incorrect. Barren Island is located in the Andaman Sea, roughly 135-140 km northeast of Port Blair (South Andaman Island). Great Nicobar Island is located much further south, over 400 km from Barren Island.
3. **The last time the Barren Island volcano erupted was in 1991 and it has remained inactive since then:** This statement is incorrect. While there was a significant eruption in 1991 after nearly two centuries of dormancy, the volcano has erupted several times since then, including in 1995, 2005-06 (linked to the 2004 Sumatra-Andaman earthquake), and most recently exhibiting eruptions in 2017 and subsequent years. It is considered active.
Barren Island is a sub-aerial part of the volcanic arc that extends from Sumatra to Myanmar. It is uninhabited by humans. The recent eruptions highlight the ongoing volcanic activity in the region.

3. Which one of the following pairs of islands is separated from each oth

Which one of the following pairs of islands is separated from each other by the ‘Ten Degree Channel’?

Andaman and Nicobar
Nicobar and Sumatra
Maldives and Lakshadweep
Sumatra and Java
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UPSC IAS – 2014
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The Ten Degree Channel is a body of water that separates the Andaman Islands to the north and the Nicobar Islands to the south in the Bay of Bengal.
Geographically, this channel lies roughly along the 10° North latitude line. It is a significant geographical feature dividing the two major island groups of India’s Andaman and Nicobar archipelago.
Other significant channels in the region include the Eight Degree Channel (separating Minicoy island of Lakshadweep from the Maldives) and the Great Channel (separating Great Nicobar from Sumatra, Indonesia). The Sunda Strait separates the Indonesian islands of Java and Sumatra.

4. Which statement is NOT correct with reference to Andaman and Nicobar I

Which statement is NOT correct with reference to Andaman and Nicobar Islands ?

Climate is humid, tropical coastal climate
Maximum rainfall occurs between March and April
Andaman and Nicobar islands are separated by 10 degree Channel which is 150 Km wide
Islands are inhabited by Negrito tribes
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UPSC NDA-2 – 2024
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Statement A is correct; the islands have a humid, tropical coastal climate with high temperatures and humidity throughout the year. Statement C is correct; the 10 Degree Channel separates the Andaman and Nicobar island groups, and its width is approximately 150 km. Statement D is correct; the indigenous population of the Andaman Islands includes Negrito tribes like the Jarawas, Sentinelese, Onges, and Great Andamanese. Statement B is incorrect; while March and April are part of the hotter pre-monsoon season, the maximum rainfall in the Andaman and Nicobar Islands occurs during the monsoon season, primarily from May/June to November, influenced by the Southwest and Northeast monsoons.
The Andaman and Nicobar Islands are characterized by a tropical climate, distinct geographical separation by the 10 Degree Channel, diverse indigenous populations, and rainfall patterns dominated by the monsoon seasons.
The capital of Andaman and Nicobar Islands is Port Blair. The highest point is Saddle Peak (North Andaman). The islands are geologically part of an underwater mountain range extension of the Arakan Mountains of Myanmar.

5. Little Andaman is separated from Great Andaman by

Little Andaman is separated from Great Andaman by

Ten Degree Channel
Homfray's Strait
Duncan Passage
Austen Strait
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UPSC Geoscientist – 2023
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The Duncan Passage is a strait in the Indian Ocean that separates Rutland Island (which is part of Great Andaman) to the north from Little Andaman Island to the south.
– Duncan Passage separates South Andaman from Little Andaman. Rutland Island is at the southern tip of South Andaman.
– The Ten Degree Channel separates the Andaman Islands from the Nicobar Islands (specifically, Little Andaman from Car Nicobar).
– Homfray’s Strait and Austen Strait are passages within the Great Andaman group.
The Andaman Islands are an archipelago in the Bay of Bengal. Great Andaman is the main island group consisting of North Andaman, Middle Andaman, South Andaman, and Rutland Island. Little Andaman is a separate island to the south.

6. Mount Thullier (642 m) is an important mountain peak of Andaman and Ni

Mount Thullier (642 m) is an important mountain peak of Andaman and Nicobar Islands. It is located in:

North Andaman
Middle Andaman
South Andaman
Great Nicobar
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Mount Thullier, with an elevation of 642 metres, is the highest point in the union territory of Andaman and Nicobar Islands. It is located in the southern part of Great Nicobar Island.
Mount Thullier is the highest peak of the Andaman and Nicobar Islands group.
Great Nicobar Island is the largest island of the Nicobar group and the southernmost island of the Andaman and Nicobar Islands. The Great Nicobar Biosphere Reserve, encompassing a large part of the island including Mount Thullier, is a UNESCO World Heritage Site.

7. Ten Degree Channel is found between:

Ten Degree Channel is found between:

North Andaman and Middle Andaman.
South Andaman and Little Andaman.
Little Andaman and Car Nicobar.
Car Nicobar and Great Nicobar.
This question was previously asked in
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The Ten Degree Channel is found between Little Andaman and Car Nicobar.
The Ten Degree Channel is a strait that separates the Andaman Islands from the Nicobar Islands in the Bay of Bengal. It is located at 10 degrees North latitude, hence the name. Specifically, it lies between Little Andaman Island to the north and Car Nicobar Island to the south.
Other significant channels in the Andaman and Nicobar archipelago include the Duncan Passage (between South Andaman and Little Andaman) and the Great Channel (between Great Nicobar and Sumatra, Indonesia).

8. Which one of the following water bodies separates the Andaman and the

Which one of the following water bodies separates the Andaman and the Nicobar islands ?

Gulf of Mannar
Ten Degree Channel
Eleven Degree Channel
Palk Strait
This question was previously asked in
UPSC CDS-1 – 2021
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The Ten Degree Channel is a strait that separates the Andaman Islands and the Nicobar Islands in the Bay of Bengal. It is named as it lies on the 10-degree line of latitude, north of the equator.
The Ten Degree Channel is a significant geographical feature marking the separation between the two major island groups of the Andaman and Nicobar archipelago.
Other important channels in the region include the Duncan Passage which separates South Andaman and Little Andaman, and the Great Channel which separates Great Nicobar from Sumatra (Indonesia). The Gulf of Mannar and Palk Strait are located between India and Sri Lanka.

9. The Andaman group of islands and the Nicobar group of islands are sepa

The Andaman group of islands and the Nicobar group of islands are separated by which one of the following latitudes?

8° N latitude
10° N latitude
12° N latitude
13° N latitude
This question was previously asked in
UPSC CDS-1 – 2019
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The correct answer is B) 10° N latitude.
The 10-degree Channel is a water body that separates the Andaman Islands group from the Nicobar Islands group.
Specifically, the 10° N latitude passes between Little Andaman Island to the north and Car Nicobar Island to the south, marking the geographical division between the Andaman and Nicobar groups of islands. Other channels like the Duncan Passage separate Great Andaman from Little Andaman (around 10.5° N), and the Great Channel separates Great Nicobar from Sumatra, Indonesia (around 6° N).
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