Question

Which landform is created by the erosional work of a glacier?

• A. Delta
• B. U-shaped Valley
• C. Sand Dune
• D. Flood Plain

Hint:

A simple way to remember: \textbf{River erosion $\rightarrow$ V-shaped valleys} \textbf{Glacial erosion $\rightarrow$ U-shaped valleys} If you see a \textbf{broad valley with steep sides and a flat floor}, it is most likely a \textbf{glacially formed U-shaped valley}.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Landforms are created by various geomorphic agents such as rivers (fluvial), glaciers (glacial), wind (aeolian), and waves (coastal).
These agents create distinct landforms through the processes of erosion (wearing away) and deposition (dropping sediment).
Step 2: Detailed Explanation:
Option (A) Delta: This is a depositional landform created by a river at its mouth.
Option (B) U-shaped Valley: As a glacier moves down a pre-existing river valley (which is typically V-shaped), it plucks and abrades the sides and bottom, widening and deepening the valley into a characteristic 'U' shape.
This is a classic glacial erosional landform.
Option (C) Sand Dune: This is an aeolian (wind) depositional landform found in deserts and coastal regions.
Option (D) Flood Plain: This is a fluvial depositional landform created by a river depositing sediment over its valley floor during floods.
Step 3: Final Answer:
A U-shaped valley is created by glacial erosion.