Which of these methods does not result in conservation of water?
(a) using drip irrigation
(b) recycling of water
(c) cutting vegetation so that less water is lost by transpiration
(d) planting more trees

(c) cutting vegetation so that less water is lost by transpiration

In drip irrigation, water is supplied to the roots of plants directly so there is no need to fill the entire field with water;thus it saves a lot of water. Recycling also conserves water, and planting more trees increases the ground water level. But cutting vegetation does not help in the conservation of water.