Question

Arrange these soil erosion types with respect to damage caused by man's interference from low to high soil loss. A. Benignant, B. Malignant, C. Normal erosion, D. Abnormal erosion.

• A. A \(<\) B \(<\) C \(<\) D
• B. B \(<\) C \(<\) D \(<\) A
• C. C \(<\) D \(<\) B \(<\) A
• D. B \(<\) A \(<\) C \(<\) D

Hint:

Normal erosion is slow and natural, while erosion increased by human interference causes higher soil loss.

Answer 1

The Correct Option is C

Concept:
Soil erosion may be classified according to intensity and damage. Natural or normal erosion is slow, while erosion accelerated by human interference causes greater damage.

Step 1: Lowest soil loss.
Normal erosion is a natural process and generally causes low soil loss. \[ \text{Lowest}=C \]

Step 2: Higher soil loss.
Abnormal erosion is greater than normal erosion because it is usually accelerated by disturbance. \[ \text{Next}=D \]

Step 3: More damaging classes.
Malignant and benignant classes represent more advanced damage levels in the given sequence. \[ B<A \]

Step 4: Final order. \[ C<D<B<A \] \[ \therefore \text{Correct Answer is (C)} \]