The kind, rate and intensity and pedogenic processes are controlled by ________ ,soil-forming factors?

Related Mcqs:

1. Pedogenic processes bring about changes in the parent materials in the form of _____________________, within the soil body (soil profile)?

   A. Additions, losses
   B. Transfers and transformations
   C. both A and B
   D. None of the above

   Submitted by: Shafiq Rehman

2. The availability of essential nutrients from soil to the plants is controlled by the ________ properties of soil:

   A. Physical
   B. chemical
   C. Biological
   D. both A & B

   Submitted by: Shafiq Rehman

3. Any material such as straw, sawdust, leaves, plastic films, & loose soil that is spread upon the surface of the soil to protect the soil & plant roots from the effects of raindrops, soil crusting, freezing or evaporation:

   A. Mull
   B. Mulch
   C. Mycorrhizae
   D. Muck

   Submitted by: Shafiq Rehman

4. _______________ of alluvium (stratified sediment) by earth-worms is the most important soil-forming process in the alluvial plain of Pakistan:

   A. Homogenization
   B. Pedoturbation
   C. Lessivage
   D. Melanization

   Submitted by: Shafiq Rehman

5. Soil-forming minerals occurring in rocks do not contain any water, they undergo ______________ when exposed to humid conditions & break down as in chemical weathering process:

   A. Carbonation
   B. Acidification
   C. Hydration
   D. Dissolution

   Submitted by: Shafiq Rehman

6. An expression of the intensity of the basic or a acidic condition of a liquid or of soil is called_____________________?

   A. ESR
   B. SAR
   C. EC
   D. pH

7. Soil additive which stabilizes the soil, improves resistance to erosion, increases to permeability to air & water, improves texture, eases cultivation or otherwise improves soil quality:

   A. Soil amendment
   B. Soil conditioner
   C. Both a & b
   D. None of the above

   Submitted by: Shafiq Rehman

8. The basic form of present day Universal soil loss equation (USLE), initially involved the use of factors such as ________?

   A. R, K and S
   B. R and K
   C. R, K, S and L
   D. R, K, S, L, C and P

   Submitted by: Shafiq Rehman

9. What kind of nitrogenous (N) fertilizers should not be used for flooded soil:

   A. Ammonical
   B. Nitrate
   C. Ammonical-nitrate
   D. Both B & C

   Submitted by: Shafiq Rehman

10. Organic P content in soil, by ignition method is estimated by igniting the soil at ____________________?

    A. 250ºC
    B. 1000ºC
    C. 550ºC
    D. 1250ºC