Question

how are canals boon for arid regions ? ​

Answer 1

Answer:

i) Rainfall deficiency is made up by canals taken out from the perennial rivers.

ii) In arid regions like Rajasthan, canals have proved to be a boon, due to which sandy patches are yielding good agricultural harvests.

iii) The alkaline salts come to the surface, mix with the soil and make it unproductive.