Across
- 3. Digging under or into the Earth to remove natural resources
- 7. The clearing of large areas of forest to make space for farming or development
- 8. Something that will not run out or be used up
- 9. Something that will eventually run out
Down
- 1. Wood that has been cut down and prepared for industrial use
- 2. A material produced by the environment that humans can use
- 4. Type of fuels made from the remains of ancient plants and animals
- 5. A chemical substance found naturally in the ground or rocks
- 6. The world's largest forest biome