(b) Drip system is the method of irrigation which conserves water and avoids wastage as water is made to fall drop by drop at the position of roots. It
is best technique for watering fruit plants, trees and gardens.
Sprinkler system is also a modern method of irrigation that efficiently uses water in the form of sprinklers. It is useful for uneven lands, while pulley
and lever system are traditional methods of irrigation where a lot of water is wasted.