Rivers such as the Ganga and Yamuna, which originate in the glaciers of the Himalayas, have water throughout the year, whereas the rivers of the Deccan Plateau tend to dry up in summer. What do you think is the reason? Hint: Which of them are supplied by glaciers and which are rain-fed?
Answers
Answer:
The perennial rivers are the rivers in which water flows throughout the year, they never goes dry.
Perennial rivers are also known as permanent rivers as they flow throughtout the year. They originate from the mountain and dring the dry season the water is fed by the melting of glaciers in these rivers.
These rivers are mostly found in North India due to the presence of the great mountain range Himalaya that is fully covered with snow provides water to some rivers throughtout the year, whereas in south india there is no mountain with snow and even snow is only in winter time so the south indian rivers are non- perennial rivers.
In Northern plains of India perennial rivers are very much useful for agriculture because they provide water throughout the year. E.g- Ganga is the best example of a perennial river.