Across
- 2. Pollution that comes from widespread sources.
- 7. Rain that has been made acidic by certain pollutants in the air such as sulfuric or nitric acid.
- 9. Pollution that comes from a single, identifiable source.
- 10. A harmful material that contaminates the environment.
- 14. The process through which heat is trapped near Earth's surface by substances known as 'greenhouse gases.'
- 15. _____ Pollution Undesirable sound that disrupts normal activities.
Down
- 1. The degree to which air is suitable or clean enough for humans, animals or plants to remain healthy
- 3. Microscopic (small) liquid or solids suspended in the air and can cause serious health problems when inhaled
- 4. Gas that is given off when burning fossil fuels. Extremely toxic to humans.
- 5. Agency in the United states that protects people and the environment through environmental regulations
- 6. gas produced by burning fossil fuels and biological materials, acting as the primary greenhouse gas
- 8. Air pollution that reduces visibility
- 9. ________Pollutant A Pollutant emitted directly from a source
- 10. The introduction of harmful materials into the environment.
- 11. ______ Pollution Excessive artificial light that disrupts natural darkness.
- 12. _______ Pollutants A Pollutant formed through reactions in the environment
- 13. A natural substance formed from the decomposed remains of ancient organisms that can be used as a source of energy. Ex. Coal, oil, gas