What does a glacial trimline indicate?
Answer and explanation
Correct answer: The former ice-surface or ice-limit level
A glacial trimline is a visible boundary separating terrain modified by former ice from terrain above or beyond that ice. Differences in rock polish, abrasion, weathering, or vegetation may mark the former upper ice limit. It therefore records past glacier extent or ice-surface elevation, so option A is correct. The other choices concern river, wind, or karst phenomena and cannot explain a glacial trimline.
Frequently asked questions
What is the correct answer to this question?
The former ice-surface or ice-limit level
Why is this the correct answer?
A glacial trimline is a visible boundary separating terrain modified by former ice from terrain above or beyond that ice. Differences in rock polish, abrasion, weathering, or vegetation may mark the former upper ice limit. It therefore records past glacier extent or ice-surface elevation, so option A is correct. The other choices concern river, wind, or karst phenomena and cannot explain a glacial trimline.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Introduction to Accounting. Topic: Meaning & Definition.
