Among the following rivers, which has undergone the maximum shifting of course—
- ASon River
- BGandak River
- CKosi River
- DGanga River
Show answer and explanation
Correct answer: (c) Kosi River
Explanation
The Kosi River is known for its continuous change of course. The Kosi is formed by the confluence of three rivers—Sun Koshi, Arun Koshi and Tamur Koshi. All these rivers originate from the Himalayan region of Nepal and Tibet. The original name of the Kosi is Kaushiki. Due to its tendency to change course, it is called the ‘Sorrow of Bihar’. It joins the Ganga near Kursela (Katihar).
This explanation is carried over from question 25 of this topic, which the book cross-references.