Across
- 2. synonym for garbage or trash
- 5. destruction of forests
- 7. rain mixed with acid
- 8. community of animals, plants living in an area which provides what they need to survive
- 10. protecting natural sources
- 12. absorbs a lot of heat from the sun's rays
- 13. noise with harmful impact on the activity of human or animal life.
- 14. pollution that affects the air and is usually caused by smoke or other harmful gases
Down
- 1. the condition of having a population so dense as to cause environmental deterioration
- 3. gradual warming of the earth's surface temperature
- 4. the process of transforming waste into new products
- 6. to release pollutant substances into air
- 9. fuels such as oil, coal, natural gas
- 11. the total amount of greenhouse gases produced to directly and indirectly support human activities