The duty is largest
A)at the head of the main canal
B)at the head of the water course
C)on the field
D)at all place

Question

Quizplus · Accepted Answer

The duty is largest on the field because it represents the area that can be irrigated with a unit volume of water. As water moves from the source through the canal and watercourse systems, losses occur due to evaporation, seepage, and other factors, reducing the effective volume available for irrigation on the field.

The Duty Is Largest