Question

Which of the following, locally called as "Susu," are found in the fresh waters of River Ganga and River Brahmaputra and are an indication of the health of the river?

• A. Whales
• B. Blind Dolphins
• C. Turtles
• D. Mangroves

Hint:

Freshwater dolphins are often used as indicators of water quality, as they are sensitive to pollution.

Answer 1

The Correct Option is B

The "Susu" refers to the Gangetic Dolphin, a freshwater species found in the River Ganga and River Brahmaputra. These dolphins are an important indicator of the health of the river, as their presence signifies good water quality and a healthy ecosystem.