Which is the main causative factor for desertification?

Related Mcqs:

1. Desertification is:

   A. Spread of the desert
   B. Control of the desert
   C. Use of the desert for good of mankind
   D. None of these

2. Most important causative pollutant of soil may be:

   A. Plastics
   B. Iron junks
   C. Detergents
   D. Glass junks

3. Habitat destruction is the indirectly acting factor while _____ hunting are the main direct human factors affecting wildlife populations:

   A. Legal
   B. Illegal
   C. Both (a) & (b)
   D. None of these

4. Main indicator of soil erosion is:

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

5. Factor affecting wood measurement is / are:

   A. Saw thickness (Kerf)
   B. Thickness of timber
   C. The minimum length of sawn pieces, the more conservation and less wastage
   D. Wider the log, the lesser the wastage
   E. All of the above

6. Factor affection thinning is/are:

   A. Site quality (S.Q): For good SQ thinning will be heavy but for poor S.Q. It will be of lighter intensity
   B. For hot, dry, weedy site, southern aspect thinning will be of lighter intensity.
   C. Objective: For getting timber, heavily thinning carried out and for getting fuel wood, no need or light, thinning is done
   D. All of the above

7. The hydrologic factor refers to:

   A. Atmosphere
   B. Water
   C. Gravitational water
   D. Snow

8. A passive factor which affects formation of soil:

   A. Nature of parent material
   B. Annual rainfall
   C. Wind velocity
   D. Mean temperature

9. Edaphic factor is due to:

   A. Man
   B. Temperature
   C. Soil
   D. Herbivores

10. Range suitability is the adoptability of range area to grazing by livestock. Factor to be considered for it:

    A. Kind of vegetation
    B. Topography
    C. Availability of drinking water
    D. All of the above