Which of the following is/are coastal erosional feature(s) ? 1. Notc

Which of the following is/are coastal erosional feature(s) ?

1. Notch
2. Sea Arch
3. Cliff
4. Hook

Select the correct answer using the code given below :

[amp_mcq option1=”1, 2 and 3″ option2=”2, 3 and 4″ option3=”2 and 3 only” option4=”1 only” correct=”option1″]

This question was previously asked in

UPSC NDA-1 – 2018

The correct answer is (A) 1, 2 and 3.
1. Notch: An undercut base of a cliff formed by wave erosion is an erosional feature.
2. Sea Arch: An archway formed in a headland by wave erosion is an erosional feature.
3. Cliff: A steep rock face often formed by the erosive action of waves on a coastline is an erosional feature.
4. Hook: A hook is a type of spit where the end is curved inwards due to wave refraction or opposing currents. A spit is a depositional feature made of accumulated sediment. Thus, a hook is fundamentally depositional.
Therefore, 1, 2, and 3 are coastal erosional features.

Coastal erosional features are shaped by the destructive forces of waves, currents, and tides on the coastline, while depositional features are built up by the accumulation of sediment.

Processes like hydraulic action, abrasion, attrition, and solution contribute to coastal erosion, leading to the formation of landforms like notches, caves, arches, stacks, stumps, cliffs, and wave-cut platforms. Depositional processes create landforms like beaches, spits, bars, tombolos, and dunes.

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