Across
- 2. Extremely important
- 3. Fuels such as oil and coal that are formed over millions on years.
- 6. To need; be decided by
- 9. The mixture of gases that surrounds Earth.
- 11. The science, work, or practice of farming
Down
- 1. Something on Earth that living things use to meet their needs
- 4. Resources are natural resources that can be replaced by natural processes.
- 5. Resources are natural resources that are being used up faster than they can be replaced by natural processes.
- 7. Having many different and connected parts
- 8. A particular way of doing something.
- 10. Deposits of minerals that are large enough to be mined for a profit