Glacial striations are evidence of which process?
Answer and explanation
Correct answer: Scratching of bedrock by particles embedded in a glacier base
The governing concept is glacial abrasion. As a glacier moves, rocks and sand frozen into its basal ice are dragged across the underlying bedrock. They carve linear grooves and scratches, called striations, whose direction can also indicate ice movement. Therefore option B is correct. Tidal deposition, delta formation, and chemical limestone precipitation do not scratch bedrock in this characteristic way.
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What is the correct answer to this question?
Scratching of bedrock by particles embedded in a glacier base
Why is this the correct answer?
The governing concept is glacial abrasion. As a glacier moves, rocks and sand frozen into its basal ice are dragged across the underlying bedrock. They carve linear grooves and scratches, called striations, whose direction can also indicate ice movement. Therefore option B is correct. Tidal deposition, delta formation, and chemical limestone precipitation do not scratch bedrock in this characteristic way.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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