The configuration of a surface and the relations among its man-made and natural features is called:________?

Related Mcqs:

1. Clay and humus particles are referred to as colloids and are less than 0.002mm. Due to their small size, colloids have ________________ surface area which provides surface for adsorption, catalysis, precipitation and microbial colonization:

   A. Extremely low
   B. Extremely high
   C. Very little
   D. None of these

   Submitted by: Shafiq Rehman

2. The removal of excess water from the ground surface is called:________?

   A. Sub-surface drainage
   B. Surface operations
   C. Drainage
   D. All of the above

   Submitted by: Shafiq Rehman

3. The immobilization and accumulation of the eluviated constituents at some depth beneath the soil surface:________?

   A. Iluviation
   B. Eluviation
   C. Illuviation
   D. Melanization

   Submitted by: Shafiq Rehman

4. 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

5. Weathering is the natural process of__________?

   A. Disintegration
   B. Sedimentation
   C. Decomposition
   D. both A & C

   Submitted by: Shafiq Rehman

6. The water loss through transpiration from vegetative and evaporation from soil surface is known as__________________?

   A. Evaptranspiration
   B. Transpiration
   C. Evaporation
   D. Guttation

7. The atmospheric layer lies closest to the earth surface is known as___________________?

   A. Mesosphere
   B. Thermosphere
   C. Troposphere
   D. Stratosphere

8. The wearing away of the land surface by wind, water, ice or other geological agents is called____________________?

   A. Seepage
   B. Soil erosion
   C. Soil contamination
   D. All the above

9. Small rivulets or finger like channels formed on the surface of earth by action of water, these channels are of small depth & can be leveled by tillage operations is:

   A. Gully erosion
   B. Sheet erosio.
   C. Stream bank erosion
   D. None of these

   Submitted by: Shafiq Rehman

10. Which chemical used to prevent evaporation from surface of water in water bodies?

    A. Cetyle alcohol
    B. Methyle alcohol
    C. both A and B
    D. None of these

    Submitted by: Shafiq Rehman