Eroded soils are:

Related Mcqs:

1. If the top soil has been eroded, we retire a land and grow over it:

   A. Lichens
   B. Blue-green algae
   C. Legumes
   D. Grasses

2. Dark coloured soils are considered most fertile as they contain:

   A. Gravel and sand
   B. Sand and calcium
   C. Clay and humus
   D. Silt and earthworms

3. In coarse textured soils:

   A. There is no soil air
   B. Water retaining capacity is high
   C. Pore space is narrow
   D. Pore frequency is low

4. Soils having sub-optimum concentration of nutrient solution are called:

   A. Hypotrophic
   B. Eutrophic
   C. Heterotrophic
   D. Oligotrophic

5. Soils transported by water are called:

   A. Alluvial
   B. Colluvial
   C. Residual
   D. Eolian

6. 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

7. The plants growing on saline soils are called:

   A. Heliophytes
   B. Xerophytes
   C. Halophytes
   D. Hydrophytes

8. The depleted soils can be enriched by the addition of:

   A. More soil
   B. Drugs
   C. Chemical fertilizers
   D. Cattle dung

9. Nitrification takes place only in well aerated soils because the bacteria responsible for it are:

   A. Aerobic
   B. Anaerobic
   C. Parasites
   D. None of these

10. Soils are classified on the basis of physical properties which determine:

    A. Productive capacity
    B. Supporting power
    C. Monitor storage capacity
    D. Nutrients availability
    E. All of the above