Why does an alluvial fan have a fan-like shape?
Answer and explanation
Correct answer: The stream spreads out and loses velocity on a plain
An alluvial fan forms where a stream leaves a steep, confined mountain valley and reaches a flatter plain. The sudden decrease in gradient makes the channel spread into several shallow paths, reducing velocity and carrying capacity. Sediment is then deposited outward in a widening, fan-shaped pattern. Wave erosion, glacier movement, and limestone dissolution describe different environments.
Frequently asked questions
What is the correct answer to this question?
The stream spreads out and loses velocity on a plain
Why is this the correct answer?
An alluvial fan forms where a stream leaves a steep, confined mountain valley and reaches a flatter plain. The sudden decrease in gradient makes the channel spread into several shallow paths, reducing velocity and carrying capacity. Sediment is then deposited outward in a widening, fan-shaped pattern. Wave erosion, glacier movement, and limestone dissolution describe different environments.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Computerized Accounting & Database System. Topic: Accounting Applications of Electronic Spreadsheets.
