Sheet erosion is caused by:

Related Mcqs:

1. The air pollution caused by phosphate fertilizer factories is due to:The air pollution caused by phosphate fertilizer factories is due to:

   A. Phosphene
   B. SiF4
   C. Dust
   D. Halogens

2. Wave erosion is more prevalent and well marked:

   A. Along rivers
   B. At the sea shore
   C. In water falls
   D. In all these places

3. The soil erosion on slopes proceeds in the following manner:

   A. Gully – Rill – ravine
   B. Rill – Ravine – Gully
   C. Rill – Gully – Ravine
   D. Ravine – Rill – Gully

4. The chief cause of accelerated erosion is:

   A. Excessive rains
   B. Wind storms
   C. Overfelling and overgrazing
   D. All of these

5. Erosion of very fine particles is seen on account of:

   A. Saltation
   B. Suspension
   C. Surface creep
   D. Shifting of dunes

6. Soil erosion in plains consequent to rain fall is initiated by:

   A. Rill erosion
   B. Sheet erosion
   C. Gully erosion
   D. All of these

7. To prevent wind and water erosion, the crop is sometimes harvested in such a way that a basal stub of the plant is left behind. This phenomenon is called:

   A. Ley farming
   B. Mulching
   C. Basin listing
   D. Strip cropping

8. Soil erosion is prevented by:

   A. Afforestation
   B. Deforestation
   C. Denudation
   D. Overgrazing

9. Soil erosion can be prevented by:

   A. Deforestation
   B. Heavy rains
   C. Afforestation
   D. Over grazing

10. Main indicator of soil erosion is:

    A. Deforestation
    B. Afforestation
    C. Ozone layer
    D. Goats and grazing animals