Sandstones are found in ………… district in Andhra Pradesh.

Pakala cheruvu is in which district?

The trails to increase water table are called

These are with groundwater

Water that is located in the ground in the pores within rock is called…

'Kulh' the local method of canal irrigation is popular in

The most appropriate use of rain water harvesting is

The water that is safe to drink is called

What is the purpose of rain-water harvesting?

Who among the following is popularly known as ‘the waterman of India'?