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Consider the following statements about the lower or Plain Course of the river. 
1. The river moving downstream across a broad, level plain is heavy with debris brought down from the upper course 
2. Vertical corrasion has almost ceased through lateral corrasion still goes on to erode its banks further 
3. The work of the river is mainly deposition, building up its bed and forming extensive flood plains 
Which of these statements is/are correct?
  • a)
    1 and 2 only
  • b)
    2 and 3 only
  • c)
    1 and 3 only
  • d)
    All of them
Correct answer is option 'D'. Can you explain this answer?
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Consider the following statements about the lower or Plain Course of ...
Lower or Plain Course of a River

The lower or plain course of a river is the final stage of its journey towards the sea. The following statements explain the characteristics of the lower course of a river:

Heavy with Debris: The river moving downstream across a broad, level plain is heavy with debris brought down from the upper course. This debris includes boulders, pebbles, and sand that have been eroded from the upper course of the river.

Lateral Corrasion: Vertical corrasion has almost ceased through lateral corrasion still goes on to erode its banks further. Lateral corrasion is the process by which a river erodes its banks through the sideways movement of water.

Deposition: The work of the river is mainly deposition, building up its bed and forming extensive flood plains. Deposition is the process by which a river drops the sediment it has been carrying, forming features such as sandbars, levees, and floodplains.

Conclusion

All of the above statements are correct. The lower or plain course of a river is characterized by the heavy deposition of sediment brought down from the upper course, erosion of banks through lateral corrasion, and the formation of extensive floodplains.
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Consider the following statements about the lower or Plain Course of ...
  • The river moving downstream across a broad, level plain is heavy with debris from the upper course. 
  • Vertical corrasion has almost ceased through lateral corrasion still goes on to erode its banks further. 
  • The work of the river is mainly deposition, building up its bed and forming extensive flood plains. 
  • The volume of water is greatly swelled by the additional tributaries that join the mainstream. 
  • Coarse materials are dropped, and the finer silt is carried down towards the mouth of the river
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Consider the following statements about the lower or Plain Course of the river. 1. The river moving downstream across a broad, level plain is heavy with debris brought down from the upper course 2. Vertical corrasion has almost ceased through lateral corrasion still goes on to erode its banks further 3. The work of the river is mainly deposition, building up its bed and forming extensive flood plains Which of these statements is/are correct?a) 1 and 2 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'D'. Can you explain this answer?
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Consider the following statements about the lower or Plain Course of the river. 1. The river moving downstream across a broad, level plain is heavy with debris brought down from the upper course 2. Vertical corrasion has almost ceased through lateral corrasion still goes on to erode its banks further 3. The work of the river is mainly deposition, building up its bed and forming extensive flood plains Which of these statements is/are correct?a) 1 and 2 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'D'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements about the lower or Plain Course of the river. 1. The river moving downstream across a broad, level plain is heavy with debris brought down from the upper course 2. Vertical corrasion has almost ceased through lateral corrasion still goes on to erode its banks further 3. The work of the river is mainly deposition, building up its bed and forming extensive flood plains Which of these statements is/are correct?a) 1 and 2 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements about the lower or Plain Course of the river. 1. The river moving downstream across a broad, level plain is heavy with debris brought down from the upper course 2. Vertical corrasion has almost ceased through lateral corrasion still goes on to erode its banks further 3. The work of the river is mainly deposition, building up its bed and forming extensive flood plains Which of these statements is/are correct?a) 1 and 2 onlyb) 2 and 3 onlyc) 1 and 3 onlyd) All of themCorrect answer is option 'D'. Can you explain this answer?.
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