The particlesw density of a mineral soil is about____________________?

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. The kaolininte is a layer silicate clay mineral, it is 1:1 type of mineral with___________________?

   A. 3-15 meq/100g CEC B. 40 meq/100g CEC C. 50 meq/100g CEC D. None of the above...

3. Mineral soil contain organic carbon___________________?

   A. >4% B. 5% C. <20% D. >10%...

4. Which silica mineral is present in soil in abundant quantity____________________?

   A. Quartz B. Smectite C. Gypsum D. All the above...

5. The mineral component of soil consists of_________?

   A. Air B. Water C. both A and B D. none of the above Submitted by: Shafiq Rehman...

6. 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...

7. _________refers to the increase in density of a soil as a result of applied load or pressure?

   A. Traffic soles B. Plough soles C. Compaction D. Pudding Submitted by: Shafiq Rehman...

8. A soil is classified as sodic soil when______________________?

   A. EC is 8.5 C. SAR is >13 D. All the above...

9. The major soil fertility problems in Pakistani soils deficiencies of N, P and Zn. Deficiencies K, Fe, and B also occur in specific crop genotypes or soil types, while deficiencies of S, Cu, and Mn are negligible. however, the common nutrient deficiencies are_________________: and some micronutrients including Mo?

   A. N, P, K B. Ca, Mg, S C. both A & B D. The above statement is wrong Submitted by: Shafiq Rehman...

10. Nitrogen & sulphur dioxide liberate from motor vehicles & industries. Nitrogen & Sulphur gases dissolve in the water vapour of atmosphere & form nitric & sulphuric acid. This rain water falls on soil as__________ & contaminates soil also:

    A. Acid rain B. Neutral rain C. Both A & B D. None of the above Submitted by: Shafiq Rehman...