Across
- 7. the variety of life in the world or in a particular habitat or ecosystem.
- 10. the natural world, as a whole or in a particular geographical area, especially as affected by human activity
- 11. the study of the relationships between living organisms, including humans and their envirorment
- 12. These fuels are found in Earth's crust and contain carbon and hydrogen
Down
- 1. - the purposeful clearing of forested land.
- 2. a large naturally occurring community of flora and fauna occupying a major habitat
- 3. emissions - carbon dioxide gas going into the air.
- 4. - plants burned to generate electricity.
- 5. -the state of the air and atmosphere at a particular time and place
- 6. - recovering forested areas destroyed in recent times by planting new trees and sowing seeds from tree species, among other strategies.
- 8. a careful preservation and protection of something
- 9. warming - the gradual warming of Earth.