Chemical waste discharged from an oil refinery.
Pesticide runoff after spraying crops on a rainy day.
Hazardous waste discharge from a treatment plant.
I would say adolescence, because that's when you are beginning to develop life skills and learn to take initiative as you move on to the next phase of your life , which is adulthood.
There are 50 states in America
I think the answer you are looking for is tobacco
<span>specificity is the right answer</span>