In which of the following rivers, the upper course contains fresh water but saline water flowing at the lower part?

উত্তর দেখান ও ব্যাখ্যা

উত্তর: (B) Luni river

ব্যাখ্যা

The Luni rises near Ajmer with fresh water, but becomes saline below Balotra as it crosses salt-bearing soils before ending in the Rann of Kutch.