Large portions of the earth with similar climate, soil ,plant and animal life community is known as:

Related Mcqs:

1. 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...

2. Soil pores created by the animal such as earthworm and plant root are called_________?

   A. Biopores B. Diameter C. Mesopores D. Microspores Submitted by: Hakeem Taj Shapuki...

3. The capacity of a soil to function on sustained basis promoting plant & animal health:

   A. Soil neutrality B. Soil quality C. Both a & b D. None of these Submitted by: Shafiq Rehman...

4. The capacity of a soil to function on sustained basis promoting plant and animal health:

   A. Soil Quality B. Soil Pollution C. Soil Salinity D. None of these Submitted by: Shafiq Rehman...

5. 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...

6. The study of relationship between soil properties & plant production is known as:_________?

   A. Pedology B.  Soil Science C. Agronomy D. None of these Submitted by: Shafiq Rehman...

7. According to a latest research, Pakistan is predominantly a dryland country; 80% of its land area is arid and semi arid, 12% sub-humid and 8% under humid climate. Thus , soils of arid & semi-arid regions are vulnerable to a wide range of degradation process. As the case in arid and semi-arid climates elsewhere in south-central/southern Asia and Sub-Saharan Africa; _________________ are among the major causes of soil degradation and desertification?

   A. Drought stress B. Accelerated erosion & salinization C. Depletion of soil fertility and SOM D. All of the above Submitted by: Shafiq Rehman...

8. Plant & animal residues contain: ___________?

   A. Sugar, celluloses, hemicelluloses B. Proteins, lignins C. Waxes, lipids D. All of the above Submitted by: Shafiq-ur-Rehman...

9. Nutritive elements needed in large quantities to ensure normal plant development:

   A. N, P, K B. S, Mg, Ca, Fe C. Both a & b D. None of a & b Submitted by: Shafiq Rehman...

10. Many plant species need very large amount of water. They are: ___________?

    A. Hydrophytes B. Hygrophytes C. Both a & b D. None of these Submitted by: Shafiq-ur-Rehman...