Auxins promote___________________?

Related Mcqs:

1. Auxins and cytokinins are________________?

   A. Growth regulators
   B. Herbicides
   C. Insecticides
   D. Fungicides

2. The nutrient particularly influencing root growth is___________________?

   A. Zinc
   B. Nitrogen
   C. Organic
   D. Phosphorus

3. Plutonic rocks are also called____________________?

   A. Intrusive igneous
   B. Metamorphic
   C. Sedimentary
   D. Extrusive igneous rock

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. The water diffusivity has the units of:__________?

   A. cm/s
   B. s/cm
   C. cm2
   D. cm2/s

   Submitted by: Shafiq Rehman

6. The virus infecting bacteria is called:_________?

   A. Bacteroid
   B. Bacteriophage
   C. Bacterin
   D. All of these

   Submitted by: Shafiq Rehman

7. _______________ of alluvium (stratified sediment) by earth-worms is the most important soil-forming process in the alluvial plain of Pakistan:

   A. Homogenization
   B. Pedoturbation
   C. Lessivage
   D. Melanization

   Submitted by: Shafiq Rehman

8. 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

9. 1 meq of HCl is equal to_________?

   A. 1.4 mg of N
   B. 14 mg of N
   C. 0.14 mg of N
   D. 140 mg of N

   Submitted by: Shafiq Rehman

10. Pakistan being predominantly an arid and semiarid country, In addition to agricultural productivity losses and increasing poverty, desertification results in significant reductions in _________?

    A. Contributing to global warming
    B. Carbon storage in soils
    C. loss of biodiversity
    D. All of these

    Submitted by: Shafiq Rehman