question_answer

Consider the following statements about the factors of soil erosion and select the correct answer using the code given below:

1. The length, gradient and curvature of slope.

2. The quantity and intensity of rainfall

3. Cover of vegetation

4. Variations in temperature.

A) 1, 2 and 3 are correct    

B) 1, 3 and 4 are correct

C) 1, 2 and 4 are correct    

D) 1, 2, 3 and 4 are correct