Pollution of soil may destroy its structure and:

Related Mcqs:

1. Pollution of SO2 destroy:

   A. Fungi
   B. Lichen
   C. Algae
   D. Fishes

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

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

3. 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

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. Positive pollution of soil is due to:

   A. Excess use of fertilizers
   B. Addition of wastes on soil
   C. Reduction in soil productivity
   D. All of these

6. The soil pollution is caused as the industrial furnaces throw:

   A. CFC, CH4 and SO2
   B. Sulphates of Na, Ca and Fe
   C. Fly ash
   D. All of these

7. The factors governing the structure of soil are called:

   A. Topographic
   B. Temperature
   C. Biotic
   D. Edaphic climax

8. The functions of soil structure are:

   A. Key to fertility of soil
   B. Important factor in soil erosion
   C. Both (a) & (b)
   D. None of these

9. The major types of soil structure are:

   A. Basis: The classification of soil structure is based on size shape and stability of soil aggregates. The soil aggregate may be of following forms
   B. Major shape: Spheroidal, plate like, bloke like, prism like
   C. Both (a) & (b)
   D. None of these

10. Effects/influences/functions of soil structure are:

    A. Water holding capacity
    B. Aeration
    C. Porosity
    D. Heat transfer
    E. All of the above