What is the long-term effect of helicoidal flow in a river?
Answer and explanation
Correct answer: Lateral migration of meanders and development of point bars
Helicoidal flow is a corkscrew-like secondary circulation in a meandering river. It transports sediment from the outer, faster-flowing bank toward the inner bank, where velocity falls and deposition forms a point bar. Continued erosion outside the bend and deposition inside it make the meander migrate laterally. Therefore option C is correct; the other options describe glacial, karst, or aeolian processes.
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What is the correct answer to this question?
Lateral migration of meanders and development of point bars
Why is this the correct answer?
Helicoidal flow is a corkscrew-like secondary circulation in a meandering river. It transports sediment from the outer, faster-flowing bank toward the inner bank, where velocity falls and deposition forms a point bar. Continued erosion outside the bend and deposition inside it make the meander migrate laterally. Therefore option C is correct; the other options describe glacial, karst, or aeolian processes.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Bank Reconciliation Statement.
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