Mohon dijawab yang benar
Irrigation is any activity which (1) ….. to the efforts to obtain water for the farm land. For this purpose people may (2) ….. reservoir or a man made lake, use water pump and build dams and ditches. The ditches (3) ….. to lead water from the resources to the farm land and drain off the excess water which is not (4) ….. by the crop.

Irrigation is an activity that (1) is carried out for agricultural activities to obtain water for agricultural land. For this purpose one may (2) create man-made reservoirs or lakes, use water pumps and build dams and gullies. Sewer (3) which serves to direct water from resources to agricultural land and drain the excess water that is not (4) from the harvest.