A. Hydrogen
B. Oxygen
C. Both A & B
D. None of these
Which of the following nutrient elements are regarded as energy exchangers: Read More »
Soil Science A. Umbric epipedon
B. Melanic epipedon
C. Mollic epipedon
D. Ochric epipedon
A. 72 %
B. 58%
C. 62 %
D. Al of the above
A. Tetrahedral sheet
B. Triple octahedral sheet
C. Octahedral sheet
D. Both A & C
Each layer of phyllosilicates is composed of two types of sheets: Read More »
Soil Science A. Positive
B. Negative
C. Zero
D. All of the above
A. Aridisols
B. Alfisols
C. Mollisols
D. None of the above
Which of the following is not the soil order prevail in Pakistan? Read More »
Soil Science A. Physical
B. chemical
C. Biological
D. both A & B
A. Reduced soil disturbance through no-till or minimum till
B. Residue return to keep at least 30% of soil covered
C. Crop rotations for better utilization of available water & nutrients
D. all of the above
A. Water distribution
B. Water management
C. both A & B
D. None of the above
The planned development, distribution and use water resources: Read More »
Soil Science A. 65 – 75%
B. 72 – 62%
C. 85 – 95%
D. 75% – 80%
