Why is the transverse profile different in glacial and river valleys?
Answer and explanation
Correct answer: A glacier abrades the valley floor and sides broadly, whereas a river mainly incises its channel
A river normally concentrates its energy in a relatively narrow channel, producing predominantly vertical incision and a V-shaped valley. A moving glacier occupies a much wider valley, and the ice plus embedded debris abrades and plucks both the floor and the sides. This broad erosion creates a U-shaped cross-profile. Thus A explains the contrast; B and C are factually false, while D ignores the different mechanics and contact areas.
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What is the correct answer to this question?
A glacier abrades the valley floor and sides broadly, whereas a river mainly incises its channel
Why is this the correct answer?
A river normally concentrates its energy in a relatively narrow channel, producing predominantly vertical incision and a V-shaped valley. A moving glacier occupies a much wider valley, and the ice plus embedded debris abrades and plucks both the floor and the sides. This broad erosion creates a U-shaped cross-profile. Thus A explains the contrast; B and C are factually false, while D ignores the different mechanics and contact areas.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Bank Reconciliation Statement. Topic: Reconciling cash book and passbook differences.
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