What is the major source of water pollution?
The major source of water pollution is rain. The same rain that helps fill reservoirs, swells rivers, and makes plants, trees and crops grow washes over cattle feed lots in the Midwest, over dirty city streets, over piles of industrial waste, etc. Eventually the fallen rain, now called `runoff’ goes directly into surface drinking water sources or seeps down through the ground into underground water sources called ‘aquifers’, carrying germs or chemicals, or both with it.
