Select the INCORRECT statement pertaining to the lining of an irrigation canal.
1
Due to lining the resistance to flow increases and the velocity of flow decreases.
2
Lining helps to provide a flatter hydraulic gradient to canal, and better command area.
3
Lining minimalizes the seepage loss in the canal, more area can be irrigated.
4
Lining increases the discharge in the canal section by increasing the velocity.