Match List I with List II and select the correct answer using the code given below: List I (Landform) | List II (Description) A. Horsts | 1. Lowered blocks in Block Mountains B. Graben | 2. Uplifted blocks in Block Mountains C. Glaciers | 3. Permanently frozen rivers of ice D. Range | 4. Mountains arranged in a line

Explanation The classification of landforms based on their formation processes, specifically distinguishing between tectonic features (Block Mountains) and exogenic agents (Glaciers). - A. Horsts (Matches 2): These are associated with Block Mountains formed by faulting. When the earth's crust fractures, the block of land that is uplifted or remains stationary relative to subsided blocks is called a Horst. - B. Graben (Matches 1): This refers to the lowered or subsided block of land located between two parallel faults. A Graben typically forms a rift valley or a trench. - C. Glaciers (Matches 3): Glaciers are massive bodies of dense ice that move under their own weight. They are geographically defined as permanently frozen rivers of ice found in high altitudes or latitudes. - D. Range (Matches 4): A mountain range is a geographic feature consisting of a series of mountains or hills arranged in a continuous line or chain. Key Takeaway: In the context of faulting, Horsts represent the uplifted blocks (ridges), while Grabens represent the subsided blocks (valleys). Glaciers act as geomorphic agents of erosion and deposition.

NCERT Class 6 Geography — Chapter 3: Major Landforms of the Earth

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Match List I with List II and select the correct answer using the code given below:

List I (Landform)	List II (Description)
A. Horsts	1. Lowered blocks in Block Mountains
B. Graben	2. Uplifted blocks in Block Mountains
C. Glaciers	3. Permanently frozen rivers of ice
D. Range	4. Mountains arranged in a line

Official previous-year question

Verified 1 Aug 2026.

Options

AA-1, B-2, C-4, D-3
BA-1, B-2, C-3, D-4
CA-2, B-1, C-3, D-4
DA-2, B-3, C-1, D-4

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Solution

Explanation

The classification of landforms based on their formation processes, specifically distinguishing between tectonic features (Block Mountains) and exogenic agents (Glaciers).

A. Horsts (Matches 2): These are associated with Block Mountains formed by faulting. When the earth's crust fractures, the block of land that is uplifted or remains stationary relative to subsided blocks is called a Horst.
B. Graben (Matches 1): This refers to the lowered or subsided block of land located between two parallel faults. A Graben typically forms a rift valley or a trench.
C. Glaciers (Matches 3): Glaciers are massive bodies of dense ice that move under their own weight. They are geographically defined as permanently frozen rivers of ice found in high altitudes or latitudes.
D. Range (Matches 4): A mountain range is a geographic feature consisting of a series of mountains or hills arranged in a continuous line or chain.

Key Takeaway: In the context of faulting, Horsts represent the uplifted blocks (ridges), while Grabens represent the subsided blocks (valleys). Glaciers act as geomorphic agents of erosion and deposition.

Your note

More from Chapter 3: Major Landforms of the Earth

Consider the following statements regarding the geomorphic processes acting on the Earth: 1. The internal process leads to the continuous wearing down and rebuilding of the land surface. 2. The internal process results in the upliftment and sinking of the earth’s surface. 3. The wearing away of the earth’s surface is termed as erosion, while rebuilding happens through deposition. Which of the statements given above is/are correct?

medium

With reference to the classification of mountains, consider the following statements: 1. The Himalayas and the Alps are young fold mountains characterized by rugged relief and high conical peaks. 2. The Aravali range in India is an example of a young fold mountain system that is currently rising. 3. The Appalachians in North America have high conical peaks. Which of the statements given above is/are correct?

medium

Consider the following statements regarding Block Mountains: 1. They are created when large areas are broken and displaced vertically. 2. The uplifted blocks are termed as 'graben' and the lowered blocks are called 'horsts'. 3. The Rhine valley in Europe is an example of such a mountain system. Which of the statements given above is/are correct?

medium

With reference to the utility of plateaus, consider the following statements: 1. The African plateau is poor in mineral resources. 2. The Chhotanagpur plateau in India has huge reserves of iron, coal, and manganese. 3. Lava plateaus are often rich in black soil that is fertile and good for cultivation. Which of the statements given above is/are correct?

medium

Consider the following statements regarding the formation of plains: 1. Most plains are formed by wind erosion. 2. Rivers erode the slopes of mountains and deposit the load in valleys. 3. Plains are generally more than 200 metres above mean sea level. Which of the statements given above is/are correct?

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Explanation

The classification of landforms based on their formation processes, specifically distinguishing between tectonic features (Block Mountains) and exogenic agents (Glaciers).

A. Horsts (Matches 2): These are associated with Block Mountains formed by faulting. When the earth's crust fractures, the block of land that is uplifted or remains stationary relative to subsided blocks is called a Horst.
B. Graben (Matches 1): This refers to the lowered or subsided block of land located between two parallel faults. A Graben typically forms a rift valley or a trench.
C. Glaciers (Matches 3): Glaciers are massive bodies of dense ice that move under their own weight. They are geographically defined as permanently frozen rivers of ice found in high altitudes or latitudes.
D. Range (Matches 4): A mountain range is a geographic feature consisting of a series of mountains or hills arranged in a continuous line or chain.