Why is a glacial valley wider and U-shaped compared with a river valley?
Answer and explanation
Correct answer: A glacier erodes both floor and sides
A glacier occupies the whole valley and moves under great pressure, unlike a river that is concentrated mainly in a narrow channel. Abrasion and plucking act on the valley floor and its side walls, removing projecting rock and widening the cross-section. The result is a broad U-shaped trough. The other choices describe neither the mechanism nor the characteristic glacial profile.
Frequently asked questions
What is the correct answer to this question?
A glacier erodes both floor and sides
Why is this the correct answer?
A glacier occupies the whole valley and moves under great pressure, unlike a river that is concentrated mainly in a narrow channel. Abrasion and plucking act on the valley floor and its side walls, removing projecting rock and widening the cross-section. The result is a broad U-shaped trough. The other choices describe neither the mechanism nor the characteristic glacial profile.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Recording of Transactions (I & II). Topic: Covers the accounting equation.
