According to one estimate, wind and water erosion over ______ % of the Pakistan’s total area?

Related Mcqs:

1. About 40% of the total area of Pakistan is affected by wind erosion. this includes:_________?

   A. Thal, Cholistan
   B. Parts of Mianwali and D.G
   C. Tharparkar & vast areas of Balochistan
   D. All of the above

   Submitted by: Shafiq Rehman

2. Soil erosion is __________ of soil from one place ti another place by natural agencies (wind & water):

   A. Detachement of soil
   B. Transportation
   C. both A & B
   D. None of these

   Submitted by: Shafiq Rehman

3. _________ erosion is the removal of a thin layer of soil by water acting over the whole surface. This type of erosion damaged very fertile lands located on slopes, some of which have been eroded to a depth of about 15 cm.

   A. Rain splash rill erosion
   B. Stream bank erosion
   C. Sheet erosion
   D. Gully erosion

   Submitted by: Shafiq Rehman

4. The first mechanism to start in the wind erosion is_________?

   A. Creep
   B. Saltation
   C. Siltation
   D. None of these

   Submitted by: Shafiq Rehman

5. In Balochistan, deserts also exists in _________, which supoorts wind erosion excluding rocky mountains:

   A. Desert of Kharan
   B. Noshki
   C. Both A & B
   D. Qilla SaifUllah

   Submitted by: Shafiq Rehman

6. Erosion permitting and erosion resisting crops grow alternatively at right angle to the slope of the land is called as:_________?

   A. Linear planting
   B. Strip planting
   C. Cover planting
   D. All of the above

   Submitted by: Shafiq Rehman

7. The wearing away of the land surface by wind, water, ice or other geological agents is called____________________?

   A. Seepage
   B. Soil erosion
   C. Soil contamination
   D. All the above

8. Water-erosion can be reduced / controlled by:___________?

   A. Provision of surface-cover that intercepts the rain before hitting the soil.
   B. Reducing the amount of runoff by promoting infiltration.
   C. Both a & b
   D. None of the above

   Submitted by: Shafiq Rehman

9. Which is the correct sequence of soil erosion by water:

   A. Rill-Sheet-Gully
   B. Gully-Sheet-Rill
   C. Sheet-Rill-Gully
   D. None of these

   Submitted by: Shafiq Rehman

10. One of the following is not a form of water erosion:

    A. Saltation
    B. Rainsplash erosion
    C. Sheet erosion
    D. Rill erosion

    Submitted by: Shafiq Rehman