My eyes
Drainage will effectively divert water away from a certain area, significantly reducing the amount of water flowing over it, which will in turn result in less movement of material.
yes, we can if more water is discharged than recharged. For example if it is dry out, and we use a vast amount of water in that time period... it could result in a temporary drainage of ground water.
Natural drainage is when the environment is transformed to form a river, which then takes any excess water to the sea which is where the water is drained to, making 'Natural Drainage'.
Drainage Basin
It is not recommended as it would result and bad tasting crops...however if you do some kind of purification, then it would be safe.
Yes. If sufficient drainage isn't put in place the result can be flooding, erosion and subsidence
drainage
the water flowing from rivers
drainage or sewage water are unsanitary water
One is storm water drainage used for clear water and the other is sanitary used for gray and black water drainage
By rain and snow!