Question

how can rain water harvesting be made possible

Answer 1

hey
these are the some methods
1.roof water harvesting(for storing the rain water in a tank
2. make some small lakes for reserve the rain water

Answer 2

hello friend-----
here your answer--------

rain water harvesting be made possible in following ways------

1.Rainwater that falls on the rooftop, be it flat or slanting, can be made to run through a pipe to a storage facility like a sump or a tank.

2.by making dug