With reference to coastal depositional landforms, consider the following statements: 1. An off-shore bar exposed due to further addition of sand is termed a lagoon. 2. A ridge of sand and shingle formed in the sea in the off-shore zone parallel to the coast is called an off-shore bar. 3. A barrier bar keyed up to the headland of a bay is called a stack. Which of the statements given above is/are correct?

The correct option is 2 only Explanation Coastal landforms are classified into erosional and depositional types based on the dominant geomorphic process. Depositional landforms result from the accumulation of sediments like sand, gravel, and shingle by sea waves and currents. - Statement 1 is Incorrect: An off-shore bar is a ridge of sand and shingle formed in the sea in the off-shore zone, lying approximately parallel to the coast. These ridges are often submerged or visible only during low tides. - Statement 2 is Correct: When an off-shore bar grows due to the further addition of sand and becomes exposed above the water level, it is termed a barrier bar. The enclosed body of seawater situated between the barrier bar and the coast is called a lagoon. The lagoon refers to the water body, not the exposed sand ridge. - Statement 3 is Incorrect: A barrier bar that is attached to the headland of a bay at one end and projects into the sea is called a spit. A stack is a coastal erosional landform (an isolated pillar of rock), formed when the roof of a sea arch collapses. Key Takeaway: Bars, barriers, spits, and lagoons are depositional features of coastlines, whereas cliffs, caves, arches, and stacks are erosional features.

With reference to coastal depositional… - NCERT Class 11 Geography MCQ

NCERT Class 11 Geography — Chapter 5: Landforms and Their Evolution

mcqmedium

With reference to coastal depositional landforms, consider the following statements:

An off-shore bar exposed due to further addition of sand is termed a lagoon.
A ridge of sand and shingle formed in the sea in the off-shore zone parallel to the coast is called an off-shore bar.
A barrier bar keyed up to the headland of a bay is called a stack.

Which of the statements given above is/are correct?

NCERT textbook question

From NCERT Fundamentals of Physical Geography · Page 58

Options

A2 only
B1, 2 and 3
C1 and 3 only
D1 only

Did you get this right?

Solution

The correct option is

2 only

Explanation

Coastal landforms are classified into erosional and depositional types based on the dominant geomorphic process. Depositional landforms result from the accumulation of sediments like sand, gravel, and shingle by sea waves and currents.

Statement 1 is Incorrect: An off-shore bar is a ridge of sand and shingle formed in the sea in the off-shore zone, lying approximately parallel to the coast. These ridges are often submerged or visible only during low tides.
Statement 2 is Correct: When an off-shore bar grows due to the further addition of sand and becomes exposed above the water level, it is termed a barrier bar. The enclosed body of seawater situated between the barrier bar and the coast is called a lagoon. The lagoon refers to the water body, not the exposed sand ridge.
Statement 3 is Incorrect: A barrier bar that is attached to the headland of a bay at one end and projects into the sea is called a spit. A stack is a coastal erosional landform (an isolated pillar of rock), formed when the roof of a sea arch collapses.

Key Takeaway: Bars, barriers, spits, and lagoons are depositional features of coastlines, whereas cliffs, caves, arches, and stacks are erosional features.

Your note

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