How is a glacial horn formed?
Answer and explanation
Correct answer: A sharp peak formed by headward erosion of several cirques
The governing concept is glacial erosion. A horn is a sharp, pyramid-shaped mountain peak left when three or more cirques erode backward into the same mountain mass from different sides. As the cirques expand, the intervening ridges become narrower and the summit is sharpened. Thus option A is correct. Alluvial deposition, wind-blown dust, and wave-built ridges are depositional or non-glacial processes and do not produce a horn.
Frequently asked questions
What is the correct answer to this question?
A sharp peak formed by headward erosion of several cirques
Why is this the correct answer?
The governing concept is glacial erosion. A horn is a sharp, pyramid-shaped mountain peak left when three or more cirques erode backward into the same mountain mass from different sides. As the cirques expand, the intervening ridges become narrower and the summit is sharpened. Thus option A is correct. Alluvial deposition, wind-blown dust, and wave-built ridges are depositional or non-glacial processes and do not produce a horn.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Introduction to Accounting. Topic: Basic Accounting Terms.
