swelling clay soils, develop cracks due to greater proportion of swelling type clays:

Related Mcqs:

1. An intrazonal group of dark calcareous soils high in clay and having mainly montmorillonitic type clay are called as:________?

   A. Regur B. Ragour C. Montmorillosol D. Regosol Submitted by: Shafiq Rehman...

2. The soil texture refers to the relative proportion of sand,__________ and clay:

   A. Stone B. Soil C. Rock D. Silt Submitted by: Shafiq Rehman...

3. Depending on the percentage of sand, silt, clay, soils are divided into _______ textural classes:

   A. 12 B. 13 C. 14 D. 09 Submitted by: Shafiq Rehman...

4. Soils that have more than 20% organic matter are termed as organic soils. These are also called:________?

   A. Peat soil B. solonchalk soil C. Muck soil D. Both a and c Submitted by: Shafiq Rehman...

5. Although some acid soils do exist in the northern mountainous regions of Pakistan (Mansehra, Sawat, Dir). Almost all cultivated soils of the country are ________________, with high base saturation and low organic matter content (generally less than 1%)?

   A. Alkaline B. Very much acidic C. Calcareous D. both A & C Submitted by: Shafiq Rehman...

6. Organic Soils are classified as ____________ and are also known as ____________ soils:

   A. Alfisols. fine & coarse textured B. Histosols, peat & muck C. Ultisols, Fe & Al rich D. None of the above Submitted by: Shafiq Rehman...

7. Organic matter decomposes rapidly in Pakistani soils because of ____________ conditions, that is why our soils generally have < 1% organic matter:

   A. High temperature B. Alkaline C. Both a & b D. None of a & b Submitted by: Shafiq Rehman...

8. The forest soils have lower bulk density than agricultural soils because of their ______ content.

   A. High organic matter B. Low organic matter C. Both a & b D. None of these Submitted by: Adnan...

9. Accumulation of Al and Fe oxides and clays coming from the upper profile layers:

   A. Zone of eluviation B. Zone of Illuviation C. Zone of evaluation D. None of the above Submitted by: Shafiq Rehman...

10. Soil order characterized by excess of weathering with dominant iron and aluminium oxide clays, common in tropics is_________?

    A. Alfisols B. Mollisols C. Entisols D. Oxisols Submitted by: Shafiq Rehman...