The mineral component of soil consists of_________?

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. The particlesw density of a mineral soil is about____________________?

   A. 2750 Kg m-3 B. 2550 Kg m-3 C. 2650 Kg m-3 D. None of the above...

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

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

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. An important component of total soil C is charcoal, also known as:__________?

   A. Black C B. Biochar C. Both A & B D. None of the above 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. Addition of sodium hexametaphosphate in soil for determination of soil texture causes__________________?

   A. Agregation of soil particles B. Cementing of soil particles C. Dispersion of soil particles D. All the above...

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

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