30 points plant and animal life have not been affected by the poor quality of the ganges river's water.
a. true
b. flase
2.one of the most common industrial pollutants found in the yangtze river is nitrogen.
a. true
b. false

First one, false because the Ganges River's water is very much polluted and has harmed almost all the fish and other water creatures living in it.
Second one, false because the most common industrial pollutants found in the Yangtze River is acid. People have tried swimming in it and had their clothes shredded. Some have died from the acid.

Hope this helps. :)

3. i would say one, but one is not prime nor composite.