The water held tightly in a thin film by te soil particles is known as:

Related Mcqs:

1. 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

2. Soil that is made-up of particles, that have been carried in water and thus deposited, is called:

   A. Silt
   B. Clay
   C. Sub-soil
   D. Loam

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

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

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. Soil particles of size 0.03 mm belong to the class of:

   A. Coarse sand
   B. Silt
   C. Fine sand
   D. Clay

7. Percentage of water left in the soil when a plant wilts is known as:

   A. Turgidity
   B. Wilting coefficient
   C. Field capacity
   D. Water retaining power of the soil

8. 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

9. The soils that are fully laden with water i.e., water logged, are known are:

   A. Physically dry soils
   B. Physiologically dry soils
   C. Alkaline soils
   D. Acidic soils

10. Water-logged condition will quickly occur in which type of soil?

    A. Sand
    B. Loam
    C. Graved
    D. Clay