Q. Which of the following rivers does not form a delta?
Delta formation happens when a river slows down and deposits sediments at its mouth, usually in the sea.
Rivers that flow into the Bay of Bengal (like Godavari, Krishna, and Mahanadi) form large deltas because of their heavy silt load and slower gradient.
The Narmada River, however, flows westward through a rift valley and directly into the Arabian Sea. Its steep gradient and narrow estuary prevent delta formation. Instead, it forms an estuary.
Explanation by: Mr. Dubey
Delta formation happens when a river slows down and deposits sediments at its mouth, usually in the sea.
Rivers that flow into the Bay of Bengal (like Godavari, Krishna, and Mahanadi) form large deltas because of their heavy silt load and slower gradient.
The Narmada River, however, flows westward through a rift valley and directly into the Arabian Sea. Its steep gradient and narrow estuary prevent delta formation. Instead, it forms an estuary.