Question

different between perennial and non perennial river​

Answer 1

perennial rivers flow throughout the year whereas non perennial rivers may get dried sometimes.

Hope it helps...

Answer 2

Perennial rivers are the permanent river that flows throughout the year. These are the real river channels which touch the ends of the water table all around the year. Non perennial rivers are periodic in nature and do not flow throughout the year. These generally flow at the time of rainy season.