Ans. (i) The alluvial Punjab-Haryana Plain has become prosperous due to tube-wells and canal irrigation. The areas near the rivers are served by canals. The region has a high percentage of area under irrigation.
(ii) However, the western part of Haryana has no river and the sub-soil water in this
part is generally brackish (salty).
iii. In the northern districts of Punjab, particularly Jalandhar and Ludhiana, irrigation
by tube-wells is important.
iv. In Haryana, well irrigation is significant in the districts lying along the right bank
of the Yamuna canal.
