With reference to Block Mountains, consider the following statements: 1. They are formed when large areas are broken and displaced horizontally. 2. The Rhine valley is an example of a Block Mountain system. 3. The Vosges mountain is an example of a Block Mountain system. Which of the statements given above is/are correct?

Correct Option The correct option is (c). Explanation Block Mountains are landforms created by the faulting of the Earth's crust. This process involves the breaking and movement of crustal blocks due to tensional or compressional forces generated by endogenic processes. Statement-wise Analysis - Statement 1 is Incorrect. Block Mountains are formed when large areas of the Earth's crust are broken and displaced vertically, not horizontally. The uplifted blocks are termed as horsts, while the lowered blocks are termed as grabens. Horizontal displacement typically results in fold mountains (through compression) or strike-slip faults. - Statement 2 is Correct. The Rhine Valley is a classic example of a Graben or rift valley, which is an integral component of a Block Mountain system. It is formed by the subsidence of the crustal block between two parallel faults. - Statement 3 is Correct. The Vosges mountain range in Europe is a prominent example of a Block Mountain (Horst). It stands as an uplifted block adjacent to the Rhine rift valley. Key Takeaway Block Mountains (Horsts) and Rift Valleys (Grabens) are formed by vertical displacement along faults. Classic examples include the Vosges and Black Forest mountains (Horsts) separated by the Rhine Valley (Graben).

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

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With reference to Block Mountains, consider the following statements:

They are formed when large areas are broken and displaced horizontally.
The Rhine valley is an example of a Block Mountain system.
The Vosges mountain is an example of a Block Mountain system.

Which of the statements given above is/are correct?

Official previous-year question

Verified 1 Aug 2026.

Options

A1 and 2 only
B2 only
C2 and 3 only
D1, 2 and 3

Did you get this right?

Solution

Correct Option

The correct option is (c).

Explanation

Block Mountains are landforms created by the faulting of the Earth's crust. This process involves the breaking and movement of crustal blocks due to tensional or compressional forces generated by endogenic processes.

Statement-wise Analysis

Statement 1 is Incorrect. Block Mountains are formed when large areas of the Earth's crust are broken and displaced vertically, not horizontally. The uplifted blocks are termed as horsts, while the lowered blocks are termed as grabens. Horizontal displacement typically results in fold mountains (through compression) or strike-slip faults.
Statement 2 is Correct. The Rhine Valley is a classic example of a Graben or rift valley, which is an integral component of a Block Mountain system. It is formed by the subsidence of the crustal block between two parallel faults.
Statement 3 is Correct. The Vosges mountain range in Europe is a prominent example of a Block Mountain (Horst). It stands as an uplifted block adjacent to the Rhine rift valley.

Key Takeaway

Block Mountains (Horsts) and Rift Valleys (Grabens) are formed by vertical displacement along faults. Classic examples include the Vosges and Black Forest mountains (Horsts) separated by the Rhine Valley (Graben).

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?

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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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Correct Option

The correct option is (c).

Explanation

Statement-wise Analysis

Statement 1 is Incorrect. Block Mountains are formed when large areas of the Earth's crust are broken and displaced vertically, not horizontally. The uplifted blocks are termed as horsts, while the lowered blocks are termed as grabens. Horizontal displacement typically results in fold mountains (through compression) or strike-slip faults.
Statement 2 is Correct. The Rhine Valley is a classic example of a Graben or rift valley, which is an integral component of a Block Mountain system. It is formed by the subsidence of the crustal block between two parallel faults.
Statement 3 is Correct. The Vosges mountain range in Europe is a prominent example of a Block Mountain (Horst). It stands as an uplifted block adjacent to the Rhine rift valley.