What is the main reason for distributaries forming in a delta?
Answer and explanation
Correct answer: Deposited sediment divides the main channel
The governing concept is deltaic deposition. Near its mouth, a river loses velocity and can no longer carry all its sediment, so sand, silt, and clay accumulate in the channel. The deposits obstruct the original course and force the water to divide into several smaller channels called distributaries. Hence option B is correct. Source-region erosion, glacier blockage, and sea-cliff uplift do not directly explain the branching pattern of a delta.
Frequently asked questions
What is the correct answer to this question?
Deposited sediment divides the main channel
Why is this the correct answer?
The governing concept is deltaic deposition. Near its mouth, a river loses velocity and can no longer carry all its sediment, so sand, silt, and clay accumulate in the channel. The deposits obstruct the original course and force the water to divide into several smaller channels called distributaries. Hence option B is correct. Source-region erosion, glacier blockage, and sea-cliff uplift do not directly explain the branching pattern of a delta.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
