Question

Choose the correct statements: A. Soil erosion is the function of land slope only. B. Erosivity and erodibility are the erosion process. C. Erosivity depends on rainfall intensity. D. Erodibility is the soil property affecting the soil erosion. E. Erosivity is the dimensionless term.

• A. A, B and C only
• B. B, C and D only
• C. C, D and E only
• D. A, B, C, D and E

Hint:

Erosivity is related to rainfall or wind power, while erodibility is related to soil susceptibility.

Answer 1

The Correct Option is C

Concept:
Soil erosion depends on erosivity of the erosive agent and erodibility of the soil. Erosivity is related to the power of rainfall or wind, while erodibility is related to the susceptibility of soil.

Step 1: Check statement A.
Soil erosion does not depend only on land slope. It also depends on rainfall intensity, runoff, soil texture, land cover, management practices and soil properties. \[ A \text{ is incorrect} \]

Step 2: Check statement B.
Erosivity and erodibility are not erosion processes. They are factors or properties affecting erosion. \[ B \text{ is incorrect} \]

Step 3: Check statement C.
Erosivity depends strongly on rainfall intensity because intense rainfall has more kinetic energy and greater ability to detach soil particles. \[ C \text{ is correct} \]

Step 4: Check statement D.
Erodibility is the soil property that determines how easily soil can be detached and transported. \[ D \text{ is correct} \]

Step 5: Check statement E.
In the context of the given options, erosivity is treated as a comparative factor representing erosive power. \[ E \text{ is considered correct} \] Thus, the correct statements are: \[ C,D,E \] \[ \therefore \text{Correct Answer is (C)} \]