Q1. Which of the following rivers is a right-bank tributary of the Ganga River System?
Explanation
The Son is a major right-bank tributary of the Ganga. It rises in central India, flows north-east, and joins the Ganga near Patna from the southern side, which makes it a right-bank tributary in the river-system classification. Ramganga, Gomti, and Ghaghara join the Ganga system from the northern side and are normally counted among its left-bank tributaries. Therefore, among the given rivers, Son alone fits the right-bank tributary description.
