How are glacial striations formed?
Answer and explanation
Correct answer: By scratches made by rock fragments embedded in a glacier
Glacial striations are straight or nearly parallel grooves scored into bedrock. As a glacier moves, stones and other debris frozen into its base are dragged across the underlying rock; pressure and friction scratch the surface. Thus option C correctly identifies glacial abrasion. Mineral deposition, floodplain formation, and tidal sand deposition do not produce these linear marks.
Frequently asked questions
What is the correct answer to this question?
By scratches made by rock fragments embedded in a glacier
Why is this the correct answer?
Glacial striations are straight or nearly parallel grooves scored into bedrock. As a glacier moves, stones and other debris frozen into its base are dragged across the underlying rock; pressure and friction scratch the surface. Thus option C correctly identifies glacial abrasion. Mineral deposition, floodplain formation, and tidal sand deposition do not produce these linear marks.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Introduction to Accounting.
