Arrange the following cities along the Ganga river from upstream to d…

The correct answer is Option (1) → (C), (B), (A), (D)

(C) Haridwar — first, the farthest upstream. The Ganga is navigable by ordinary boats up to Haridwar.

(B) Kanpur — second. Going down the river, the first polluted stretch of the Ganga is downstream of Kanpur.

(A) Varanasi — third. The next polluted stretch is downstream of Varanasi.

(D) Patna — fourth, the farthest downstream of the four, below Varanasi.

Note 1: The given answer is as per the official NTA Answer Key. The book does not give the order of these four cities in clear words. It only gives the Ganga stretches downstream of Kanpur and Varanasi, the main polluting cities in the order Kanpur, Prayagraj, Varanasi, Patna and Kolkata, and National Waterway No. 1 navigable up to Patna by mechanical boats and up to Haridwar by ordinary boats, which shows the order Haridwar, Kanpur, Varanasi, Patna.

Note 2: Kanpur, Varanasi and Patna stand in the polluters’ column of a small Ganga table in the same order as the river flows. A table can teach you the path of a river too.