Source of negative charges on silicate clays is/ are________?

Related Mcqs:

1. 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...

2. 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...

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

   A. Alfisols B. Ultisols C. Vertisols D. None of the above Submitted by: Shafiq Rehman...

4. 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...

5. There are twelve soil orders found in the world of which six soil orders have been recognized at various locations are________?

   A. Andisols, Gelisols, Histosols, Spodosols, Oxisols, Ultisols B. Entisols, Inceptisols, Aridisols, Alfisols, Mollisols, Vertisols C. Andisols, Aridisols, Histosols, Vertisols, Regosols, Libosols D. The above statement is wrong Submitted by: Shafiq Rehman...

6. Common and easily available source of energy does not contain RNA__________________?

   A. DNA B. RNA C. ATP D. DNA/RNA...

7. Norine 10 is the source of dwarfing gene in________________?

   A. Wheat B. Rice C. Barley D. Oat...

8. capsicum is a rich source of___________________?

   A. Vitamin A B. Vitamin C C. Vitamin D D. None of the above...

9. Fruits are an excellent source of_____________________?

   A. Vitamins B. Minerals C. Carbohydrates D. All the above...

10. Fly larvae (maggots) move away from a bright source of light. This is an example of a ___________?

    A. Taxis B. Reflex (involuntary movement) C. Kinesis D. Transverse orientation (Keeping a fix angle on a distance) Submitted by: Muhammad Amjad...