As a result of fire, there is destruction of the following components of soil:

Related Mcqs:

1. Removal of top soil by soil erosion result in the loss of soil:

   A. Nitrites
   B. Nitrates
   C. Nitrogen
   D. Nitric and nitrous acids

2. 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

3. In water logged soil plants cannot grow properly because the soil is:

   A. Physiologically wet
   B. Physiologically dry
   C. Physically dry
   D. None of the above

4. When a plant first begins to wilts permanently in a pot, its 54.5 gms of soil has 4.5 gms of water. The PWP of this soil is:

   A. 4.50%
   B. 9%
   C. 8.25%
   D. 16.50%

5. The ration of volume of pores in the soil to the total soil volume is referred to as:

   A. Pore frequency ratio
   B. Pore density ration
   C. Pore abundance ratio
   D. Pore space ratio

6. When a soil has been thoroughly wetted and then allowed to drain until capillary movement of the water has stopped, the water content of the soil will give an estimate of it’s:

   A. Gravitational water
   B. Capillary water
   C. Field capacity
   D. Storage capacity

7. As an adaptation to fire, some plants produce lignotubres which are:

   A. Borne on the leaves
   B. Borne underground
   C. Present on the main stem
   D. Suspended from the branches

8. The advantage/s of fire:

   A. Reduction of biotic thrust
   B. Destruction of diseased plants
   C. Both (a) & (b)
   D. None of these

9. The methods of controlling or putting out fire are:

   A. Application of water
   B. Application of earth
   C. Beating out
   D. Counter-firing
   E. All of the above

10. Damage caused by fire is / are:

    A. Injury to trees
    B. Injury to young growth and regeneration
    C. Injury to the soil
    D. Injury to wildlife
    E. All of the above