The factor used for conversion of P to P2O3 is____________________?

Related Mcqs:

1. Nitrification is the microbial conversion of____________________?

   A. NH nitrogen the NO3 nitrogen in soil
   B. NO2 to NO3 nitrogen in soil
   C. NO3 nitrogen to NH4 + in soil
   D. None of the above

2. Conversion of inorganic P to organic P is known as:_________?

   A. Mineralization
   B. Immobilization
   C. Solubilization
   D. both A & C

   Submitted by: Mir Mehrbiyar

3. pH of Pakistani soils is____________________?

   A. 7.5
   B. 12
   C. 7
   D. 14

4. The unit of electrical conductivity is____________________?

   A. dsm-1
   B. mmhos/m
   C. ms/cm
   D. Al the above

5. The reaction of Na2 CO3 salt is____________________?

   A. Alkaline
   B. Neutral
   C. Acidic
   D. None of the above

6. The deficient level of N (%) in plants suggested by various workers is____________________?

   A. 0%
   B. 3%
   C. 5%
   D. 10%

7. Primary air pollution is____________________?

   A. SO
   B. SO3
   C. SO2
   D. None of the above

8. The most abundant metal in the earth’s crust and toxic to plants in low concentration is____________________?

   A. Mo
   B. Al
   C. Fe
   D. All the above

9. The mechanism ensuring genetic continuity in mitosis is____________________?

   A. Formation of two daughter cells with identical DNA
   B. Crossing over of the genes
   C. Halving of chromosome nuriber between two daughter cells
   D. Segregation of maternal and paternal characters

10. The storage life of fresh onion at -1 to -4ºC is____________________?

    A. 10-15 weeks
    B. 10-25 weeks
    C. 12-28 weeks
    D. 12-25 weeks