Correct Answer - Option 4 : Evaporation and Transpiration from the cropped area
Consumptive use of water by a crop is the depth of water consumed by the plant in the process of interception, transpiration, and evaporation, during crop growth.
These two processes (i.e. transpiration and evaporation) collectively termed as evapo-transpiration.
Interception refers to precipitation that does not reach the soil, but is instead intercepted by the leaves and branches of plants.
Consumptive use of water by a crop is expressed as the depth of water per unit area for a specified period, such as days, months or seasons. The value of the consumptive use of water is needed to calculate the irrigation requirement of the crop.
