Across
- 1. any energy type that is generated from natural resources
- 4. abbreviation for polychlorinated biphenyl
- 7. converting waste into reusable material
- 8. protecting, maintaining or improving natural resources
- 11. gases in Earth's atmosphere that trap heat
- 14. destruction of forests to make land for agriculture
- 17. the production and discharge of something, especially gas or radiation
- 18. a measure of the effect that human activities have on the climate
Down
- 2. using little electricity, gas etc.
- 3. a community of animals, plants and other organisms living in an area which provides what they need in order to survive
- 5. capable of being decomposed by natural biological processes
- 6. the surroundings or conditions in which a person, animal, or plant lives or operates
- 9. the release of a liquid petroleum into the environment
- 10. the gradual heating of Earth's surface, oceans and atmosphere, is caused by human activity
- 12. thick, soft, wet mud or a similar viscous mixture of liquid and solid component
- 13. the general weather conditions usually found in a particular place
- 15. an area designated to receive garbage, solid waste and construction debris
- 16. contamination of the air, water, or soil with substances that can cause harm to the environment