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Consider the following statements about the river course.
1. A negative movement occurs when there is an uplift of land or a fall in sea level
2. This will steepen the slope so that active down-cutting is renewed
3. A fall in sea level leaves the flood-plain at an increased altitude above the sea level
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?
Most Upvoted Answer
Consider the following statements about the river course. 1. A negati...
- A negative movement occurs when there is an uplift of land or a sea-level fall. This will steepen the slope so that active down-cutting is renewed.
- A fall in sea level leaves the flood-plain at an increased altitude above the sea level. The river with its renewed vigour cuts into the former flood-plain, leaving behind terraces on both sides of the river.
- There is also a break in the river's graded profile, often marked by a series of rapids.
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Consider the following statements about the river course. 1. A negati...
River Course and its Relationship with Sea Level
The river course refers to the path taken by a river as it flows from its source to its mouth. The course of the river is shaped by various factors such as the slope of the land, the nature of the soil and rock, and the volume and speed of water flow. One of the most significant factors that affect the river course is the sea level. Let's discuss the given statements in detail:
Negative Movement and Uplift of Land or Fall in Sea Level
- The first statement is correct. Negative movement refers to the downward movement of the land surface. This can occur due to various reasons such as tectonic activity or erosion. When there is an uplift of land or a fall in sea level, it results in negative movement. This causes a change in the river course as the slope of the land is altered.
Steepening of Slope and Active Down-Cutting
- The second statement is also correct. When there is a negative movement, the slope of the land is steepened. This makes the river flow faster and more energetically. As a result, active down-cutting is renewed, and the river channel becomes deeper.
Increased Altitude of Flood-Plain
- The third statement is also correct. When there is a fall in sea level, the flood-plain is left at a higher altitude above the sea level. This means that the river has to flow a greater distance to reach the sea. This can result in a change in the river course as the river tries to find the shortest and steepest path to the sea.
Conclusion
In conclusion, all the given statements about the river course are correct. The sea level plays a crucial role in shaping the course of the river. A fall in sea level or an uplift of land can result in negative movement, which steepens the slope of the land and renews active down-cutting. This, in turn, leads to a deeper river channel. Additionally, a fall in sea level can result in the flood-plain being left at a higher altitude above the sea level, which can cause a change in the river course.
The river course refers to the path taken by a river as it flows from its source to its mouth. The course of the river is shaped by various factors such as the slope of the land, the nature of the soil and rock, and the volume and speed of water flow. One of the most significant factors that affect the river course is the sea level. Let's discuss the given statements in detail:
Negative Movement and Uplift of Land or Fall in Sea Level
- The first statement is correct. Negative movement refers to the downward movement of the land surface. This can occur due to various reasons such as tectonic activity or erosion. When there is an uplift of land or a fall in sea level, it results in negative movement. This causes a change in the river course as the slope of the land is altered.
Steepening of Slope and Active Down-Cutting
- The second statement is also correct. When there is a negative movement, the slope of the land is steepened. This makes the river flow faster and more energetically. As a result, active down-cutting is renewed, and the river channel becomes deeper.
Increased Altitude of Flood-Plain
- The third statement is also correct. When there is a fall in sea level, the flood-plain is left at a higher altitude above the sea level. This means that the river has to flow a greater distance to reach the sea. This can result in a change in the river course as the river tries to find the shortest and steepest path to the sea.
Conclusion
In conclusion, all the given statements about the river course are correct. The sea level plays a crucial role in shaping the course of the river. A fall in sea level or an uplift of land can result in negative movement, which steepens the slope of the land and renews active down-cutting. This, in turn, leads to a deeper river channel. Additionally, a fall in sea level can result in the flood-plain being left at a higher altitude above the sea level, which can cause a change in the river course.
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Consider the following statements about the river course. 1. A negative movement occurs when there is an uplift of land or a fall in sea level 2. This will steepen the slope so that active down-cutting is renewed 3. A fall in sea level leaves the flood-plain at an increased altitude above the sea level 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 river course. 1. A negative movement occurs when there is an uplift of land or a fall in sea level 2. This will steepen the slope so that active down-cutting is renewed 3. A fall in sea level leaves the flood-plain at an increased altitude above the sea level 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 2025 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 river course. 1. A negative movement occurs when there is an uplift of land or a fall in sea level 2. This will steepen the slope so that active down-cutting is renewed 3. A fall in sea level leaves the flood-plain at an increased altitude above the sea level 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 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements about the river course. 1. A negative movement occurs when there is an uplift of land or a fall in sea level 2. This will steepen the slope so that active down-cutting is renewed 3. A fall in sea level leaves the flood-plain at an increased altitude above the sea level 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?.
Consider the following statements about the river course. 1. A negative movement occurs when there is an uplift of land or a fall in sea level 2. This will steepen the slope so that active down-cutting is renewed 3. A fall in sea level leaves the flood-plain at an increased altitude above the sea level 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 2025 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 river course. 1. A negative movement occurs when there is an uplift of land or a fall in sea level 2. This will steepen the slope so that active down-cutting is renewed 3. A fall in sea level leaves the flood-plain at an increased altitude above the sea level 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 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements about the river course. 1. A negative movement occurs when there is an uplift of land or a fall in sea level 2. This will steepen the slope so that active down-cutting is renewed 3. A fall in sea level leaves the flood-plain at an increased altitude above the sea level 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?.
Solutions for Consider the following statements about the river course. 1. A negative movement occurs when there is an uplift of land or a fall in sea level 2. This will steepen the slope so that active down-cutting is renewed 3. A fall in sea level leaves the flood-plain at an increased altitude above the sea level 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? in English & in Hindi are available as part of our courses for UPSC.
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Consider the following statements about the river course. 1. A negative movement occurs when there is an uplift of land or a fall in sea level 2. This will steepen the slope so that active down-cutting is renewed 3. A fall in sea level leaves the flood-plain at an increased altitude above the sea level 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?, a detailed solution for Consider the following statements about the river course. 1. A negative movement occurs when there is an uplift of land or a fall in sea level 2. This will steepen the slope so that active down-cutting is renewed 3. A fall in sea level leaves the flood-plain at an increased altitude above the sea level 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? has been provided alongside types of Consider the following statements about the river course. 1. A negative movement occurs when there is an uplift of land or a fall in sea level 2. This will steepen the slope so that active down-cutting is renewed 3. A fall in sea level leaves the flood-plain at an increased altitude above the sea level 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? theory, EduRev gives you an
ample number of questions to practice Consider the following statements about the river course. 1. A negative movement occurs when there is an uplift of land or a fall in sea level 2. This will steepen the slope so that active down-cutting is renewed 3. A fall in sea level leaves the flood-plain at an increased altitude above the sea level 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? tests, examples and also practice UPSC tests.
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