Roof top rainwater harvesting

Surface runoff harvesting

both a & b

none of the above

In order to play with the water

In order to use during scarcity of water

In order to pour the rain water directly to the sewage

In order to time pass

Flood mitigation

Provide a lot of water to play

Create good aesthetic view

Decrease the ground water level

check dam

khet talavdi

rain water harvesting

all of the above

minimum 15000 meter cube water stored by check dam

The river bed should be at least 300 meters above the check dam

both a & b

none of the above

increasing area of reservoir

decresing wind speed in reservoir area

reservoir is covering with plastic

all of the above

$a=0.552*h^{0.5}$

$a=0.662*h^{0.5}$

$a=0.442*h^{0.5}$