UPSC Civil Services Model Paper 8

The Rhine flows through Germany and the Netherlands . It is navigable for 700 km from Rotterdam, at its mouth in the Netherlands to Basel in Switzerland. Ocean-going vessels can reach up to Cologne.
Hence statement 1 is correct .
The Ruhr river joins the Rhine from the east. It flows through a rich coalfield and the whole basin has become a prosperous manufacturing area.
Dusseldorf is the Rhine port for this region . Huge tonnage moves along the stretch south of the Ruhr.
National Waterways declared 111 National Waterways under the National Waterways Act, 2016, 13 are operational for shipping and navigation, Hence statement 2 is correct.
National Waterway 1 is 1620 kms long on ganga river and flows through Uttar Pradesh, Bihar, Jharkhand and West Bengal.
It was established in 1986.Hence statement 3 is correct .