A. Seepage
B. Soil erosion
C. Soil contamination
D. All the above
A. Nutrient film technique
B. Hydrology
C. Hydrants
D. Hydroponics
A. ECP
B. ECe
C. ECs
D. Ecw
A. Neutral
B. Alkaline
C. Acidic
D. None of the above
A. Desodication
B. Sodication
C. Degradation
D. Salininzation
A. Mesosphere
B. Thermosphere
C. Troposphere
D. Stratosphere
A. O2
B. CO2
C. SO3
D. All the above
A. SO
B. SO3
C. SO2
D. None of the above
A. Mho’s scale
B. pH scale
C. Foot scale
D. None of the above
A. Evaptranspiration
B. Transpiration
C. Evaporation
D. Guttation