Association of two microorganisms in which one is benefited while other remains unaffected is known as:________?

Related Mcqs:

1. Microorganisms have C/N ratio of____________________?

   A. 2:1
   B. 4:1
   C. 12:1
   D. 20:1

2. To prevent deterioration of food from microorganisms which one of the following preservatives are used _____________________?

   A. NaCl
   B. Sulpher dioxide
   C. Nitrate
   D. All the above

3. The time for which water and ion remains in vicinity is called_____________________?

   A. Primary hydration
   B. ppm
   C. Normality
   D. Residence time

4. A species or type of a plant derived from doubling the chromosome of the F1 hybrid of two known species is known as__________________?

   A. Autodiploid
   B. Hexaploid
   C. Autopolyploid
   D. Amphidiploid

5. Those rams whose breeding worth is known, is known as _______________________?

   A. Experienced ram
   B. Adult ram
   C. Mature ram
   D. None of above

6. The configuration of a surface and the relations among its man-made and natural features is called:________?

   A. Tofography
   B. topograpy
   C. Topography
   D. All of the above

   Submitted by: Shafiq Rehman

7. Soils that have more than 20% organic matter are termed as organic soils. These are also called:________?

   A. Peat soil
   B. solonchalk soil
   C. Muck soil
   D. Both a and c

   Submitted by: Shafiq Rehman

8. The immobilization and accumulation of the eluviated constituents at some depth beneath the soil surface:________?

   A. Iluviation
   B. Eluviation
   C. Illuviation
   D. Melanization

   Submitted by: Shafiq Rehman

9. The kind, rate and intensity and pedogenic processes are controlled by ________ ,soil-forming factors?

   A. 6
   B. 7
   C. 4
   D. None of the above 

   Submitted by: Shafiq Rehman

10. A & B horizon is called as:________?

    A. Regolith
    B. Poly-pedon
    C. Series
    D. None of the above

    Submitted by: Shafiq Rehman