A. Wind erosion
B. land sliding
C. Rainfall
D. None of these
Soil Science
Which is the main cause of desertification?
A. Accelerated activities
B. Over grazing
C. Dry farming agriculture
D. None of the above
An important component of total soil C is charcoal, also known as:……….?
A. Black C
B. Biochar
C. Both A & B
D. None of the above
……………… systems play a crucial role in increasing soil organic C storage and reducing net emissions of greenhouse gases in addition to soil erosion control:
A. Engineering
B. Agroforestry
C. Cultivating
D. All of the above
Shallow channels that can be readily corrected by routine tillage operations is called:
A. Permanent gullies
B. Ephemeral gullies
C. Both A & B
D. None of these
The drawbacks of erosion can be divided into:……….?
A. Onsite damages
B. Offsite damages
C. Both A & B
D. None of the above
Auxin is…….?
A. An enzyme
B. A vitamin
C. A hormone
D. A protein
How many type of soil colloids?
A. 4
B. 2
C. 6
D. 5
N and P sprayed on the leaves at time of flowering results in:……..?
A. Increase in fruit yield
B. Improve their protein
C. Increase fruit yeid & protein
D. None of these
Conversion of inorganic P to organic P is known as:………?
A. Mineralization
B. Immobilization
C. Solubilization
D. both A & C