A passive factor which affects formation 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. Soil formation is initiated by the phenomenon of:

   A. Weathering
   B. Gleization
   C. Laterization
   D. Pedogenesis

3. The soil formation occurs in the following consecutive stages:

   A. Weathering : sedimentation
   B. Weathering : pedogenesis
   C. Pedogenesis : weathering
   D. Sedimentation : pedogenesis

4. 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

5. 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%

6. 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

7. 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

8. The factors which affects of Infiltration Capacity (f):

   A. Solid density increase, f increase
   B. As degree of aggregation increases f increases
   C. Soil frost, reduces “f”
   D. All of the above

9. The phenomenon describing the formation of a blue-grey coloured layer at the bottom of the solum due to ferrous compounds is:

   A. Gleization
   B. Mineralization
   C. Laterization
   D. Podsolization

10. A geologic formation which contains water and transmits it from one point to another in quantities sufficient to permit economic development is called ________.

    A. Aquifer
    B. Alluvival Fans
    C. Aquiclude
    D. Albedo