Wed. Jan 8th, 2025

Cycle of Erosion and Polycyclic Reliefs

  1. What is the drainage pattern that develops during the youthful stage of the normal cycle of erosion?

    Options:
    1. Trellis
    2. Rectangular
    3. Radial
    4. Annular

    Option: A

  2. Which of the following is a characteristic feature of the mature stage of the normal cycle of erosion?

    Options:
    1. Short length of streams
    2. Deep valleys
    3. Monanocks
    4. High velocity of flow rate

    Option: B

  3. What is the main cause of the development of monanocks during the mature stage of the normal cycle of erosion?

    Options:
    1. Headward erosion of rills and gullies
    2. Kinetic energy of the flowing water
    3. Upliftment of landmass
    4. Endogenetic forces

    Option: A

  4. Which of the following is a characteristic feature of the old stage of the normal cycle of erosion?

    Options:
    1. Residual convexo-concave low hills
    2. Dendritic drainage pattern
    3. Rapid rate of downcutting of valleys
    4. Deep valleys

    Option: A

  5. What is the term used for the stage just before the final stage of the normal cycle of erosion?

    Options:
    1. Youthful
    2. Mature
    3. Senile
    4. Penultimate

    Option: D

  6. Which of the following is not a stage in the development of river valleys?

    Options:
    1. Youthful
    2. Mature
    3. Old
    4. Senile

    Option: D

  7. Why do rivers carry big boulders of large size and angular shape?

    Options:
    1. Because of their high transporting capacity
    2. Because of lateral erosion
    3. Because of vertical erosion
    4. Because of the interstream areas

    Option: A

  8. Which process is the most active and powerful process of vertical erosion in the juvenile stage of the normal cycle of erosion?

    Options:
    1. Lateral erosion
    2. Valley widening
    3. Downcutting
    4. Potholed drilling

    Option: D

  9. What is the characteristic shape of the valleys in the juvenile stage of erosion?

    Options:
    1. Broad and flat valleys
    2. Deep and narrow valleys
    3. V-shaped valleys
    4. Convex slope valleys

    Option: C

  10. What is the main reason for the decrease in valley deepening during the mature stage of erosion?

    Options:
    1. Decrease in channel gradient
    2. Decrease in the velocity of river flow
    3. Decrease in the transporting capacity of the river
    4. All of the above

    Option: D

  11. What happens to the convex slope of valley sides during the mature stage of erosion?

    Options:
    1. It becomes progressively transformed into uniform or retilem-ear slope
    2. It becomes more convex
    3. It becomes steeper
    4. It disappears

    Option: A

  12. What is the main reason for the deposition of big boulders at the foothill zones during the mature stage of erosion?

    Options:
    1. Increase in channel gradient
    2. Increase in the velocity of river flow
    3. Sudden decrease in channel gradient
    4. Sudden increase in channel gradient

    Option: C

  13. What is the most characteristic feature of the juvenile stage of the normal cycle of erosion?

    Options:
    1. Potholed drilling
    2. Valley widening
    3. River capture
    4. Lateral erosion

    Option: C

  14. What happens to the transporting capacity of rivers during this stage of the normal cycle of erosion?

    Options:
    1. It increases.
    2. It decreases.
    3. It remains the same.
    4. It becomes zero.

    Option: B

  15. What is the reason for extensive sedimentation during this stage of the normal cycle of erosion?

    Options:
    1. High channel gradient.
    2. Low channel gradient.
    3. High transporting capacity.
    4. Low transporting capacity.

    Option: D

  16. What kind of courses do the rivers adopt during this stage of the normal cycle of erosion?

    Options:
    1. Straight courses.
    2. Circular courses.
    3. Meandering courses.
    4. Zigzag courses.

    Option: C

  17. What is the reason for the rivers becoming braided during this stage of the normal cycle of erosion?

    Options:
    1. High channel gradient.
    2. Low channel gradient.
    3. High transporting capacity.
    4. Low transporting capacity.

    Option: B

  18. What are natural levees?

    Options:
    1. High channel gradient.
    2. Low channel gradient.
    3. Raised banks of sediment.
    4. Large boulders in the riverbe

    Option: C

  19. What are monadnocks?

    Options:
    1. Residual hills resulting from differential erosion.
    2. River channels with high transporting capacity.
    3. Raised banks of sediment.
    4. Large boulders in the riverbe

    Option: A

  20. What is a peneplain?

    Options:
    1. A region with high relief.
    2. A region with low relief.
    3. A region with high transporting capacity.
    4. A region with high channel gradient.

    Option: B