A.Bacterial decay of animal remains
B.Electric lightning
C.Addition of lime in soil
D.Nitrogen fixing bacteria
Related Mcqs:
- An example of nitrogen fixing bacteria in the soil is __________?
- Nitrogen gas returns to the atmosphere by the action of ____________.
- A unit of soil classification as well as soil mapping which is similar to soil series in most of the soil properties except one or two but the area of such a unit is not enough to establish it as a separate series and show on a soil map, is known as:
- Positive pollution of soil is due to:?
- Azolla is used as a biofertilizer because it:
- Soil conservation is the process where:
- In reversible adiabatic processes
- Earthworms increase fertility of soil by:
- Removal of top soil by soil erosion result in the loss of soil:
- A combination of many taxonomic units like soil series, phase or types is called:
