Question map
Not attempted Correct Incorrect Bookmarked
Loading…
Q3 (IAS/2014) Geography › Maps & Locations › International transport routes Official Key

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

Result
Your answer:  ·  Correct: A
Explanation

The Andaman and Nicobar Islands are separated by the Ten Degree Channel, about 150 km wide.[1] The entire group of islands is divided into two broad categories – the Andaman in the north and the Nicobar in the south, and they are separated by a waterbody which is called the Ten degree channel.[2]

The Ten Degree Channel is a strategic waterbody in the Bay of Bengal that derives its name from its location near the 10°N latitude line. This channel serves as a natural divider between the two major island groups of the Andaman and Nicobar archipelago. The other options listed – Nicobar-Sumatra, Maldives-Lakshadweep, and Sumatra-Java – are separated by different waterbodies altogether. This question tests basic knowledge of India's island geography, which is an important topic for UPSC Prelims, particularly regarding the strategic location of Indian territories.

Sources
  1. [1] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 15: Regional Development and Planning > The Union Territory of Andaman and Nicobar (Population: 380,581–2011) > p. 90
  2. [2] INDIA PHYSICAL ENVIRONMENT, Geography Class XI (NCERT 2025 ed.) > Chapter 2: Structure and Physiography > The Islands > p. 15
How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
50%
got it right
PROVENANCE & STUDY PATTERN
Full view
Don’t just practise – reverse-engineer the question. This panel shows where this PYQ came from (books / web), how the examiner broke it into hidden statements, and which nearby micro-concepts you were supposed to learn from it. Treat it like an autopsy of the question: what might have triggered it, which exact lines in the book matter, and what linked ideas you should carry forward to future questions.
Q. Which one of the following pairs of islands is separated from each other by the 'Ten Degree Channel'? [A] Andaman and Nicobar [B] Nicob…
At a glance
Origin: Books + Current Affairs Fairness: Low / Borderline fairness Books / CA: 2.5/10 · 7.5/10

This is a 'Bread and Butter' question. It comes directly from the first chapter of any standard Indian Geography book (NCERT Class XI or Majid Husain). If you miss this, you are statistically out of the race. It requires zero current affairs—just fundamental mental mapping of India's physical features.

How this question is built

This question can be broken into the following sub-statements. Tap a statement sentence to jump into its detailed analysis.

Statement 1
Does the Ten Degree Channel separate the Andaman Islands and the Nicobar Islands?
Origin: Direct from books Fairness: Straightforward Book-answerable
From standard books
Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 15: Regional Development and Planning > The Union Territory of Andaman and Nicobar (Population: 380,581–2011) > p. 90
Presence: 5/5
“There are 556 islands in the Union Territory of Andaman and Nicobar Islands. Out of these 36 are permanently inhabited. Most islands are in the Andaman group, 26 of which are inhabited. The Nicobar islands comprises 22 main islands (10 inhabited). The Andaman and Nicobar Islands are separated by the Ten Degree Channel, about 150 km wide. The total area of Andaman Islands is about 6408 sq km, and that of Nicobar Islands approximately 1841 sq km. The Andaman and Nicobar Islands are endowed with tropical rainforest. These forests consists of a mixed flora with elements from Indian, Malaysian, and Myanmarese floral strains.”
Why this source?
  • Explicit statement: 'The Andaman and Nicobar Islands are separated by the Ten Degree Channel.'
  • Provides quantitative detail: channel is 'about 150 km wide', reinforcing a clear physical separation.
Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > Islands of the Bay of Bengal > p. 66
Presence: 5/5
“The main islands of the Bay of Bengal are the Andaman and Nicobar groups. The Andaman and Nicobar islands are separated by the Ten Degree Channel. The shortest distance of the Andaman Islands from the mainland (Bay of Bengal Head) is about 2000 km and the extreme southern point is the Indira Point—the southern most point of the Great Nicobar Island (Fig. 2.23).”
Why this source?
  • Direct assertion that the Andaman and Nicobar islands are separated by the Ten Degree Channel.
  • Places this separation in the context of the main Bay of Bengal island groups, confirming relevance.
INDIA PHYSICAL ENVIRONMENT, Geography Class XI (NCERT 2025 ed.) > Chapter 2: Structure and Physiography > The Islands > p. 15
Presence: 5/5
“There are two major island groups in India – one in the Bay of Bengal and the other in the Arabian Sea. The Bay of Bengal island groups consist of about 572 islands/islets. These are situated roughly between 6°°N-14°°N and 92°°E -94°°E. The two principal groups of islets include the Ritchie's archipelago and the Labrynth island. The entire group of island is divided into two broad categories – the Andaman in the north and the Nicobar in the south. They are separated by a waterbody which is called the Ten degree channel. It is believed that these islands are an elevated portion of submarine mountains.”
Why this source?
  • States the two island groups (Andaman in the north, Nicobar in the south) 'are separated by a waterbody which is called the Ten degree channel.'
  • Provides locational context (lat-long range) that supports the north–south division separated by the channel.
Statement 2
Does the Ten Degree Channel separate the Nicobar Islands and the island of Sumatra?
Origin: Web / Current Affairs Fairness: CA heavy Web-answerable

Web source
Presence: 5/5
"the Ten Degree Channel separates the Andaman Islands and the Nicobar Islands from each other in the Bay of Bengal."
Why this source?
  • Explicitly states what the Ten Degree Channel separates.
  • Shows the channel separates the Andaman Islands and the Nicobar Islands (not Nicobar and Sumatra).
Web source
Presence: 5/5
"The entire group of island is divided into two broad categories – the Andaman in the north and the Nicobar in the south. They are separated by a waterbody which is called the Ten degree channel."
Why this source?
  • Describes the division of the island groups and names the separating waterbody.
  • Identifies the Ten Degree Channel as the waterbody separating Andaman (north) and Nicobar (south).
Web source
Presence: 5/5
"The Ten Degree Channel is a captivating body of water that separates the Andaman Islands from the Nicobar Islands."
Why this source?
  • Directly states the Ten Degree Channel's role within the Andaman and Nicobar archipelago.
  • Supports that the channel separates the Andaman Islands from the Nicobar Islands, not Sumatra.

Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > Islands of the Bay of Bengal > p. 66
Strength: 5/5
“The main islands of the Bay of Bengal are the Andaman and Nicobar groups. The Andaman and Nicobar islands are separated by the Ten Degree Channel. The shortest distance of the Andaman Islands from the mainland (Bay of Bengal Head) is about 2000 km and the extreme southern point is the Indira Point—the southern most point of the Great Nicobar Island (Fig. 2.23).”
Why relevant

States that the Andaman and Nicobar islands are separated by the Ten Degree Channel and identifies Indira Point as the southernmost point of Great Nicobar.

How to extend

A student could use a map to compare the location of Indira Point (southern Nicobar) with Sumatra to judge whether the Ten Degree Channel lies between Nicobar and Sumatra.

Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 15: Regional Development and Planning > The Union Territory of Andaman and Nicobar (Population: 380,581–2011) > p. 90
Strength: 5/5
“There are 556 islands in the Union Territory of Andaman and Nicobar Islands. Out of these 36 are permanently inhabited. Most islands are in the Andaman group, 26 of which are inhabited. The Nicobar islands comprises 22 main islands (10 inhabited). The Andaman and Nicobar Islands are separated by the Ten Degree Channel, about 150 km wide. The total area of Andaman Islands is about 6408 sq km, and that of Nicobar Islands approximately 1841 sq km. The Andaman and Nicobar Islands are endowed with tropical rainforest. These forests consists of a mixed flora with elements from Indian, Malaysian, and Myanmarese floral strains.”
Why relevant

Explicitly says the Andaman and Nicobar Islands are separated by the Ten Degree Channel, about 150 km wide.

How to extend

Using the channel's role/location between Indian island groups, a student can map that channel's latitude/position and then check Sumatra's position to see if Sumatra lies on the other side.

INDIA PHYSICAL ENVIRONMENT, Geography Class XI (NCERT 2025 ed.) > Chapter 2: Structure and Physiography > The Islands > p. 15
Strength: 4/5
“There are two major island groups in India – one in the Bay of Bengal and the other in the Arabian Sea. The Bay of Bengal island groups consist of about 572 islands/islets. These are situated roughly between 6°°N-14°°N and 92°°E -94°°E. The two principal groups of islets include the Ritchie's archipelago and the Labrynth island. The entire group of island is divided into two broad categories – the Andaman in the north and the Nicobar in the south. They are separated by a waterbody which is called the Ten degree channel. It is believed that these islands are an elevated portion of submarine mountains.”
Why relevant

Gives the latitude/longitude range for the Bay of Bengal island groups (roughly 6°N–14°N and 92°E–94°E) and reiterates that Andaman and Nicobar are divided by the Ten Degree Channel.

How to extend

A student can place these coordinates on a world map and compare them with Sumatra's coordinates to infer whether the Ten Degree Channel is the waterbody separating Nicobar from Sumatra.

Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > The Arabian Sea Islands > p. 68
Strength: 3/5
“There are 43 islands in the Arabian Sea, out of which only 11 are inhabited. The shortest distance from the mainland (Calicut) is about 109 km. Kavaratti, located on the island of this name is the capital of Lakshadweep. Lakshadweep islands are separated from the Maldive Islands by the Eight Degree Channel. Hills and streams are absent”
Why relevant

Provides an example of a named degree-based channel (Eight Degree Channel) separating island groups (Lakshadweep and Maldives), showing the naming pattern for channels by latitude.

How to extend

A student can infer that the 'Ten Degree Channel' name likely indicates its approximate latitude and then check whether that latitude lies between Nicobar and Sumatra on a map.

Certificate Physical and Human Geography , GC Leong (Oxford University press 3rd ed.) > Chapter 11: Islands and Coral Reefs > Gontinental islands > p. 97
Strength: 3/5
“These islands were formerly part of the mainland and are now detached from the continent. They may be separated by a shallow lagoon or a deep channel (Fig. 11.1). Their separation could be due to subsidence of some part of the land or to a rise in sea-level, so that the lowland links are submerged by the sea. Their former connection with the neighbouring mainland can be traced from the similar physical structure, flora and fauna that exist on both sides of the channel 1. Individual islands. These lie just outside the continent, very much associated with the characteristic features of the mainland of which they were once part.”
Why relevant

Explains the general concept that islands are separated by channels and deep waterways, a pattern applicable when evaluating whether a named channel separates two landmasses.

How to extend

Using this general rule, a student could treat the Ten Degree Channel as a potential deep channel between island groups and verify its position relative to Sumatra on a chart or map.

Statement 3
Does the Ten Degree Channel separate the Maldives and the Lakshadweep Islands?
Origin: Web / Current Affairs Fairness: CA heavy Web-answerable

Web source
Presence: 5/5
"To summarise, ... the Ten Degree Channel separates the Andaman"
Why this source?
  • Explicitly lists which channels separate which island groups and assigns the Ten Degree Channel to the Andaman group.
  • Directly indicates the Ten Degree Channel does not separate Maldives and Lakshadweep.
Web source
Presence: 5/5
"the Ten Degree Channel separates the Andaman Islands and the Nicobar Islands from each other in the Bay of Bengal."
Why this source?
  • Summarises that the Ten Degree Channel separates the Andaman and Nicobar Islands.
  • Shows the Ten Degree Channel's role is between Andaman and Nicobar, not Maldives and Lakshadweep.
Web source
Presence: 5/5
"The entire group of island is divided into two broad categories – the Andaman in the north and the Nicobar in the south. They are separated by a waterbody which is called the Ten degree channel."
Why this source?
  • Describes the Andaman (north) and Nicobar (south) division and names the separating waterbody as the Ten Degree Channel.
  • Confirms the channel separates Andaman and Nicobar island groups, not Maldives/Lakshadweep.

Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > The Arabian Sea Islands > p. 68
Strength: 5/5
“There are 43 islands in the Arabian Sea, out of which only 11 are inhabited. The shortest distance from the mainland (Calicut) is about 109 km. Kavaratti, located on the island of this name is the capital of Lakshadweep. Lakshadweep islands are separated from the Maldive Islands by the Eight Degree Channel. Hills and streams are absent”
Why relevant

Explicitly states that the Lakshadweep islands are separated from the Maldive Islands by the Eight Degree Channel.

How to extend

A student could check a map for the Eight Degree Channel's position relative to Lakshadweep and Maldives to judge if Ten Degree Channel could play that role instead.

CONTEMPORARY INDIA-I ,Geography, Class IX . NCERT(Revised ed 2025) > Chapter 1: India Size and Location > Before 1947, there were two types of states in India — the provinces and the Princely states. Provinces were ruled directly by British officials, who were appointed by the Viceroy. Princely states were ruled by local, hereditary rulers, who acknowledged sovereignity in return for local autonomy. > p. 5
Strength: 4/5
“Sri Lanka and Maldives. Sri Lanka is separated from India by a narrow channel of sea formed by the Palk Strait and the Gulf of Mannar, while Maldives Islands are situated to the south of the Lakshadweep Islands. India has had strong geographical and historical links with her neighbours. Look at the physical map of Asia in your atlas, and note how India stands apart from the rest of Asia. School Bhuvan, NCERT is a portal providing map-based learning to bring awareness among the students about the country's natural resources, environment and their role in sustainable development. It is an initiative of Bhuvan — NRSC/ISRO based on NCERT syllabus.”
Why relevant

Says the Maldives Islands are situated to the south of the Lakshadweep Islands.

How to extend

Using a basic world/region map, a student can confirm the relative positions and see which named channels lie between them.

Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > Islands of the Bay of Bengal > p. 66
Strength: 5/5
“The main islands of the Bay of Bengal are the Andaman and Nicobar groups. The Andaman and Nicobar islands are separated by the Ten Degree Channel. The shortest distance of the Andaman Islands from the mainland (Bay of Bengal Head) is about 2000 km and the extreme southern point is the Indira Point—the southern most point of the Great Nicobar Island (Fig. 2.23).”
Why relevant

Defines the Ten Degree Channel as the waterbody separating the Andaman and Nicobar groups (Bay of Bengal).

How to extend

A student can infer that Ten Degree Channel is located in the Bay of Bengal (east of Indian mainland), so they should compare that location with Lakshadweep/Maldives in the Arabian Sea.

INDIA PHYSICAL ENVIRONMENT, Geography Class XI (NCERT 2025 ed.) > Chapter 2: Structure and Physiography > The Islands > p. 15
Strength: 4/5
“There are two major island groups in India – one in the Bay of Bengal and the other in the Arabian Sea. The Bay of Bengal island groups consist of about 572 islands/islets. These are situated roughly between 6°°N-14°°N and 92°°E -94°°E. The two principal groups of islets include the Ritchie's archipelago and the Labrynth island. The entire group of island is divided into two broad categories – the Andaman in the north and the Nicobar in the south. They are separated by a waterbody which is called the Ten degree channel. It is believed that these islands are an elevated portion of submarine mountains.”
Why relevant

Reiterates that the Andaman and Nicobar are separated by the Ten Degree Channel and gives their approximate latitudinal/longitudinal ranges.

How to extend

By comparing the given ranges (6°N–14°N, 92°E–94°E) with Lakshadweep/Maldives coordinates on a map, a student can assess whether Ten Degree Channel lies between those western island groups.

Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 15: Regional Development and Planning > The Union Territory of Andaman and Nicobar (Population: 380,581–2011) > p. 90
Strength: 3/5
“There are 556 islands in the Union Territory of Andaman and Nicobar Islands. Out of these 36 are permanently inhabited. Most islands are in the Andaman group, 26 of which are inhabited. The Nicobar islands comprises 22 main islands (10 inhabited). The Andaman and Nicobar Islands are separated by the Ten Degree Channel, about 150 km wide. The total area of Andaman Islands is about 6408 sq km, and that of Nicobar Islands approximately 1841 sq km. The Andaman and Nicobar Islands are endowed with tropical rainforest. These forests consists of a mixed flora with elements from Indian, Malaysian, and Myanmarese floral strains.”
Why relevant

Gives the Ten Degree Channel's width (~150 km) and again states it separates the Andaman and Nicobar Islands.

How to extend

Knowing this channel's identity and scale, a student can locate it on a regional map to determine if it intersects the Lakshadweep–Maldives area.

Statement 4
Does the Ten Degree Channel separate the islands of Sumatra and Java?
Origin: Web / Current Affairs Fairness: CA heavy Web-answerable

Web source
Presence: 5/5
"The Ten Degree Channel is a captivating body of water that separates the Andaman Islands from the Nicobar Islands."
Why this source?
  • Explicitly names what the Ten Degree Channel separates: Andaman Islands and Nicobar Islands.
  • Directly contradicts the claim that it separates Sumatra and Java.
Web source
Presence: 5/5
"the Ten Degree Channel separates the Andaman Islands and the Nicobar Islands from each other in the Bay of Bengal."
Why this source?
  • States the Ten Degree Channel separates the Andaman Islands and the Nicobar Islands in the Bay of Bengal.
  • Again shows the channel's role is between Andaman and Nicobar, not Sumatra and Java.
Web source
Presence: 3/5
"is separated from each other by the Ten degree channel? **(A) Andaman and Nicobar** (B) Nicobar and Sumatra (C) Maldives and Lakshadweep (D) Sumatra and Java"
Why this source?
  • The MCQ lists 'Andaman and Nicobar' as the option for islands separated by the Ten Degree Channel.
  • The presence of 'Sumatra and Java' only as another option implies Sumatra–Java is not the correct separation.

Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > Islands of the Bay of Bengal > p. 66
Strength: 5/5
“The main islands of the Bay of Bengal are the Andaman and Nicobar groups. The Andaman and Nicobar islands are separated by the Ten Degree Channel. The shortest distance of the Andaman Islands from the mainland (Bay of Bengal Head) is about 2000 km and the extreme southern point is the Indira Point—the southern most point of the Great Nicobar Island (Fig. 2.23).”
Why relevant

Explicitly states the Ten Degree Channel separates the Andaman and Nicobar islands, identifying the channel's actual regional role.

How to extend

A student can note this channel's association with the Bay of Bengal/Andaman–Nicobar region and, using a map, compare that region's location with Sumatra–Java to judge whether the same channel could separate them.

INDIA PHYSICAL ENVIRONMENT, Geography Class XI (NCERT 2025 ed.) > Chapter 2: Structure and Physiography > The Islands > p. 15
Strength: 5/5
“There are two major island groups in India – one in the Bay of Bengal and the other in the Arabian Sea. The Bay of Bengal island groups consist of about 572 islands/islets. These are situated roughly between 6°°N-14°°N and 92°°E -94°°E. The two principal groups of islets include the Ritchie's archipelago and the Labrynth island. The entire group of island is divided into two broad categories – the Andaman in the north and the Nicobar in the south. They are separated by a waterbody which is called the Ten degree channel. It is believed that these islands are an elevated portion of submarine mountains.”
Why relevant

Also describes the Ten Degree Channel as the waterbody dividing the Andaman and Nicobar groups and gives their approximate latitudinal/longitudinal band.

How to extend

Using the given lat/long range for Andaman–Nicobar, a student can place the Ten Degree Channel on a world map relative to Sumatra and Java to assess plausibility.

Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 15: Regional Development and Planning > The Union Territory of Andaman and Nicobar (Population: 380,581–2011) > p. 90
Strength: 4/5
“There are 556 islands in the Union Territory of Andaman and Nicobar Islands. Out of these 36 are permanently inhabited. Most islands are in the Andaman group, 26 of which are inhabited. The Nicobar islands comprises 22 main islands (10 inhabited). The Andaman and Nicobar Islands are separated by the Ten Degree Channel, about 150 km wide. The total area of Andaman Islands is about 6408 sq km, and that of Nicobar Islands approximately 1841 sq km. The Andaman and Nicobar Islands are endowed with tropical rainforest. These forests consists of a mixed flora with elements from Indian, Malaysian, and Myanmarese floral strains.”
Why relevant

Repeats that the Andaman and Nicobar Islands are separated by the Ten Degree Channel and gives its approximate width (~150 km), reinforcing the channel's geographic context.

How to extend

Knowing the Ten Degree Channel lies between Andaman and Nicobar, a student can infer it is not a channel between islands in Southeast Asia farther south (like Sumatra and Java) and verify on a map.

Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 8: Convergent Boundary > Formation of The Philippine Island Arc System > p. 112
Strength: 4/5
“• Philippine Island Arc system is formed due to the subduction of the Philippine Sea plate under the Sunda Plate (major continental shelf of the Eurasian plate). The trench formed here is called Philippine Trench.• Sunda Shelf: The south-eastern portion of the Eurasian plate (includes Java, Borneo and Sumatra and their surrounding small islands, as well as the Malay Peninsula), which is a part of Southeast Asia, is a continental shelf called the Sunda Shelf. Its landmass was exposed during periods when sea levels were lower. The Sunda Shelf and its islands are known as the Sundaland.”
Why relevant

Defines the Sunda Shelf as including Java and Sumatra (and nearby islands), grouping those two islands in the same regional shelf system.

How to extend

A student can combine this shelf association with a map to infer Java and Sumatra are part of the same shelf/region (so any channel separating them would be different from one named in the Bay of Bengal).

Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > The Arabian Sea Islands > p. 68
Strength: 3/5
“There are 43 islands in the Arabian Sea, out of which only 11 are inhabited. The shortest distance from the mainland (Calicut) is about 109 km. Kavaratti, located on the island of this name is the capital of Lakshadweep. Lakshadweep islands are separated from the Maldive Islands by the Eight Degree Channel. Hills and streams are absent”
Why relevant

Gives an example of a channel named for a latitude (Eight Degree Channel) that separates island groups (Lakshadweep and Maldives), illustrating the naming pattern and regional channel concept.

How to extend

A student can apply this pattern (latitude-named channels tied to specific island groups) and a map to see that the Ten Degree Channel name corresponds to Andaman–Nicobar, not Sumatra–Java.

Pattern takeaway: UPSC consistently tests 'Dividing Lines' in physical geography. The pattern is to pick a physical feature (Strait, Channel, Pass) that acts as a boundary between two distinct landmasses. They cycle through Palk Strait, Duncan Passage, and Degree Channels. Master the North-to-South arrangement of these islands.
How you should have studied
  1. [THE VERDICT]: Absolute Sitter. Direct lift from NCERT Class XI (India: Physical Environment, Ch-2) and Majid Husain (Ch-2).
  2. [THE CONCEPTUAL TRIGGER]: 'Physiography of India: Island Groups'. Specifically, the naming convention of maritime channels based on their Latitude (Degree).
  3. [THE HORIZONTAL EXPANSION]: Memorize the 'Channel Family': 1. 8° Channel: Minicoy (India) — Maldives. 2. 9° Channel: Minicoy — Main Lakshadweep group (Kavaratti). 3. Duncan Passage: South Andaman — Little Andaman. 4. Coco Channel: North Andaman — Myanmar (Coco Islands). 5. Great Channel (6° Channel): Indira Point (Great Nicobar) — Banda Aceh (Sumatra).
  4. [THE STRATEGIC METACOGNITION]: Do not rote memorize names. Visualize the Latitude lines (8°N, 10°N) on a map. The name 'Ten Degree' literally tells you the location is at 10°N Latitude. If you know Andaman is North and Nicobar is South, the line cutting them must be the 10th parallel.
Concept hooks from this question
📌 Adjacent topic to master
S1
👉 Ten Degree Channel as the dividing strait
💡 The insight

All key references explicitly identify the Ten Degree Channel as the waterbody separating the Andaman (north) and Nicobar (south) island groups.

Knowing named maritime channels that separate island groups is high-yield for map-based and strategic questions. It links physical geography with maritime boundaries and defence/geopolitics. Memorise major channels/straits and their role (location, width, strategic importance) for quick recall in UPSC prelims and mains.

📚 Reading List :
  • Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 15: Regional Development and Planning > The Union Territory of Andaman and Nicobar (Population: 380,581–2011) > p. 90
  • Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > Islands of the Bay of Bengal > p. 66
  • INDIA PHYSICAL ENVIRONMENT, Geography Class XI (NCERT 2025 ed.) > Chapter 2: Structure and Physiography > The Islands > p. 15
🔗 Anchor: "Does the Ten Degree Channel separate the Andaman Islands and the Nicobar Islands..."
📌 Adjacent topic to master
S1
👉 Andaman vs Nicobar — north–south division and island counts
💡 The insight

References describe the two groups as northern (Andaman) and southern (Nicobar) and give island counts/inhabitation details that underpin the division separated by the Ten Degree Channel.

Understanding group-wise composition (which is north/south, number of islands, inhabited vs uninhabited) helps answer geography, ecology and polity questions about UT administration and conservation. Learn group labels, counts and distinctive features to eliminate options in objective tests and to add precision in descriptive answers.

📚 Reading List :
  • Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 15: Regional Development and Planning > The Union Territory of Andaman and Nicobar (Population: 380,581–2011) > p. 90
  • INDIA PHYSICAL ENVIRONMENT, Geography Class XI (NCERT 2025 ed.) > Chapter 2: Structure and Physiography > The Islands > p. 15
🔗 Anchor: "Does the Ten Degree Channel separate the Andaman Islands and the Nicobar Islands..."
📌 Adjacent topic to master
S1
👉 Geographical location (latitude–longitude) and climatic context
💡 The insight

One reference gives the approximate latitudinal and longitudinal range for the island group, supporting the spatial separation and climatic implications of the Ten Degree Channel separating north and south groups.

Mastering lat-long ranges and associated climate/vegetation (e.g., equatorial influence, tropical rainforest) is useful for map questions and for linking physical geography to biodiversity and human settlement topics. Practice by plotting ranges and linking them to climate and ecosystem characteristics.

📚 Reading List :
  • INDIA PHYSICAL ENVIRONMENT, Geography Class XI (NCERT 2025 ed.) > Chapter 2: Structure and Physiography > The Islands > p. 15
🔗 Anchor: "Does the Ten Degree Channel separate the Andaman Islands and the Nicobar Islands..."
📌 Adjacent topic to master
S2
👉 Ten Degree Channel — separator between Andaman and Nicobar
💡 The insight

Multiple references explicitly state that the Ten Degree Channel separates the Andaman and Nicobar island groups, directly relevant to evaluating claims about what the channel separates.

High-yield for Indian geography: questions often ask which waterbody separates island groups. Mastering named channels and their role in dividing island groups helps eliminate distractors in objective and descriptive questions. Study approach: memorise key channels (names and the island groups they separate) with map practice.

📚 Reading List :
  • Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > Islands of the Bay of Bengal > p. 66
  • Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 15: Regional Development and Planning > The Union Territory of Andaman and Nicobar (Population: 380,581–2011) > p. 90
  • INDIA PHYSICAL ENVIRONMENT, Geography Class XI (NCERT 2025 ed.) > Chapter 2: Structure and Physiography > The Islands > p. 15
🔗 Anchor: "Does the Ten Degree Channel separate the Nicobar Islands and the island of Sumat..."
📌 Adjacent topic to master
S2
👉 Andaman vs Nicobar — group distinctions and basics
💡 The insight

References record the two-group division (Andaman north, Nicobar south) and give counts/locations, which grounds any question about separations or proximity to other landmasses.

Frequently tested topic: knowing the composition, location and relative positions of Andaman and Nicobar islands aids answers on physiography, biodiversity and strategic importance. Prepare by linking textual facts (counts, latitudinal range) to maps and past MCQs/short-answer prompts.

📚 Reading List :
  • Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 15: Regional Development and Planning > The Union Territory of Andaman and Nicobar (Population: 380,581–2011) > p. 90
  • INDIA PHYSICAL ENVIRONMENT, Geography Class XI (NCERT 2025 ed.) > Chapter 2: Structure and Physiography > The Islands > p. 15
  • CONTEMPORARY INDIA-I ,Geography, Class IX . NCERT(Revised ed 2025) > Chapter 2: Physical Features of India > Corals > p. 14
🔗 Anchor: "Does the Ten Degree Channel separate the Nicobar Islands and the island of Sumat..."
📌 Adjacent topic to master
S2
👉 Named maritime 'degree' channels as locational indicators
💡 The insight

Evidence mentions Ten Degree Channel (Andaman–Nicobar) and Eight Degree Channel (Lakshadweep–Maldives), showing a pattern of naming channels by latitude that indicate separation between island groups.

Useful for rapid geographic inference: recognising 'degree' channels helps locate features by approximate latitude and understand maritime separations in questions on island systems and maritime boundaries. Practice by mapping degree-channel names to latitudes and adjacent island groups.

📚 Reading List :
  • Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > Islands of the Bay of Bengal > p. 66
  • Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > The Arabian Sea Islands > p. 68
🔗 Anchor: "Does the Ten Degree Channel separate the Nicobar Islands and the island of Sumat..."
📌 Adjacent topic to master
S3
👉 Channel names that separate island groups (Ten° vs Eight°)
💡 The insight

References show the Ten Degree Channel separates Andaman and Nicobar, while the Lakshadweep–Maldives separation is named the Eight Degree Channel—this is the core confusion behind the statement.

Knowing precise names of maritime channels/straits is frequently tested in geography; it helps quickly eliminate options and understand island group boundaries. Memorise common channel names and their associated island groups, and practise map-based recall.

📚 Reading List :
  • Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > Islands of the Bay of Bengal > p. 66
  • Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > The Arabian Sea Islands > p. 68
🔗 Anchor: "Does the Ten Degree Channel separate the Maldives and the Lakshadweep Islands?"
🌑 The Hidden Trap

The 'Great Channel' (or Six Degree Channel). Since Option B (Nicobar and Sumatra) and Option D (Sumatra and Java) were distractors here, the logical next question is: 'What separates Great Nicobar from Sumatra?' Answer: The Great Channel. Also, 'Sunda Strait' separates Sumatra and Java.

⚡ Elimination Cheat Code

Use the 'Latitude Logic'. The channel is named 'Ten Degree' (10°N).
- Maldives (Option C) is equatorial (0°–4°N), so 10° is too high.
- Sumatra (Option B/D) is crossed by the Equator (0°), so 10° is too far North.
- Only the Andaman & Nicobar chain spans a length (6°N to 14°N) where a cut at 10°N makes geometric sense.

🔗 Mains Connection

Geopolitics & Security: The Ten Degree Channel is a critical 'Choke Point' for the Indian Navy. Connect this to the 'Tri-Service Command' (ANC) located in Port Blair. In Mains, cite this channel when discussing India's dominance in the Bay of Bengal and the 'Metal Chain' strategy against China's 'String of Pearls'.

✓ Thank you! We'll review this.

SIMILAR QUESTIONS

CDS-I · 2021 · Q28 Relevance score: 5.74

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

CDS-I · 2019 · Q69 Relevance score: 5.11

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

CDS-II · 2018 · Q40 Relevance score: 5.04

The Eight Degree Channel separates which of the following?

CDS-I · 2022 · Q72 Relevance score: 4.03

Ten Degree Channel is found between :

CDS-II · 2009 · Q116 Relevance score: 3.74

The channel separating the Andaman Island from the Nicobar Islands is known as