Variation in the flow of canal was a problem each year. What was done to try to overcome this problem?

The principle general target is to give water to the various clients at the correct second and in the correct amount, lessening misfortunes however much as could reasonably be expected to ensure the well being of the framework.

Specifically, a significant concern is to keep the channels from over fixing, and furthermore from having water levels inside the pools beneath the stockpile profundities of the gravity off takes.

Explanation:

An irrigation canal is a pressure driven system whose fundamental target is to pass on water from a source (dam and stream) to various clients. Such system can be extremely enormous (a few tens or many kilometers); they are described by time delays and nonlinear elements, solid obscure annoyances and communications among subsystems. Shifting operational goals are allocated to their supervisors.

no the answer is c only objects touching the earth's surface can be acted upon by an outside force

answer; procedural justice;