1. Water Pollution. When a toxic substance leaks into water, it can cause animals to die, it poisons water that can be used for drinking, and it destroys the aquatic life in and surrounding the water.
Examples: cans, bottles, plastic, garbage, gasoline, etc.
2. Air Pollution. When harmful chemicals enter the air, it causes health problems, environmental problems, and sometimes damage to property.
Examples: smoke, carbon monoxide, nitrogen oxide, chlorofluorocarbon, etc.