Q24 of 465 Page 45

..... wells are not very deep .

Open wells

They are not very deep (generally 3 to 15 m). They have relatively large diameter (generally 1 to 5 m) and low yields (generally less than 30 m3/hr).


More from this chapter

All 465 →
22

India has .... Major river basins and ... composite river basins that form the surface water resource.

 23

The process of supplying .... to crops in the fields by means of canals, reservoirs, wells, river valley systems and river lift systems is known as irrigation.

 25

wells are very deep.

 26

Organic manures include ……and …manure and vermicompost.