The fertility of the soil is improved by________________?

Related Mcqs:

1. The quality of petrol is improved by ____________?

   A. Cracking
   B. Reforming
   C. Refining
   D. Hydration

   Submitted by: Aamir khan Hullio

2. Angle of deflection was studied by________________?

   A. Hitorff
   B. Stoney
   C. William Crookes
   D. J.Perrin

3. The relationship between energy of a photon of light and its frequency is given by________________?

   A. de-Broglie duel nature of matter
   B. Bohrs model
   C. Plancks Quantum theory
   D. Rutherfords atomic model

4. Atom cannot be divided into simple unitstheorized by________________?

   A. Rutherford
   B. Dalton
   C. Bohr
   D. Schrodinger

5. The processes of effusion and diffusion are best understand by________________?

   A. Daltons law
   B. Avogadros law
   C. Grahams law
   D. Charles law

6. Idea of pH and pOH was put forward by________________?

   A. Gibbs
   B. Einstein
   C. Sorenson
   D. Chadwick

7. Water of crystallization can be removed by________________?

   A. drying
   B. heating
   C. evaporation
   D. All of the above

8. When the reaction completes in more than one steps rate of reaction will be determined by________________?

   A. Fast step
   B. Slowest step
   C. All steps
   D. Molecularity of the reaction

9. Addition of urea to the soil is ____________ reaction?

   A. endothermic
   B. exothermic
   C. both a and b
   D. no heat energy is involved

10. Gypsum is applied to the soil as a source of________________?

    A. Ca and P
    B. S and P
    C. Ca and S
    D. we could not apply