Rainwater leaches a lot of good and bad stuff out of the land as it moves downstream to our oceans.
As a society we pollute water by throwing trash into rivers, drilling for oil, and by mining for coal.
people
Insufficient information, please ask the question in a sensible clear way.
by pesticides and fertilzeres. they runoff into a nearby stream and pollutes the water.
Impact of the Water Pollution on the Chinese Nation
Air and Water Pollution in Imperial Valley
The Importance of Amphibians for Water Safety
Chemical Pollution's Effect on Amphibians