The drawbacks of erosion can be divided into:__________?

Related Mcqs:

1. _________ 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

2. 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

3. 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

4. Tunnel erosion is the form of:__________?

   A. Rainsplash erosion
   B. Sheet erosion
   C. Rill erosion
   D. Gully Erosion

   Submitted by: Shafiq Rehman

5. 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

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

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

   Submitted by: Shafiq Rehman

7. 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

8. Any tillage and planting system that maintains at least 30% of the soil surface covered by residue after planting for the purpose of reducing soil erosion by water:

   A. Deep Tillage
   B. Conservation Tillage
   C. Both a & b
   D. None of these

   Submitted by: Shafiq Rehman

9. Soil additive which stabilizes the soil, improves resistance to erosion, increases to permeability to air & water, improves texture, eases cultivation or otherwise improves soil quality:

   A. Soil amendment
   B. Soil conditioner
   C. Both a & b
   D. None of the above

   Submitted by: Shafiq Rehman

10. 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