Across
- 2. renewable resource that grows quickly
- 4. a type of fossil fuel
- 6. nonrenewable resource that is formed very slowly such as quartz
- 7. a type of fossil fuel that is mined
- 8. a natural resource that humans use to generate energy
- 9. a resource that forms much more slowly than it is consumed
- 10. a nonrenewable resource formed from the buried remains of plants and animals that lived long ago
Down
- 1. any natural material used by humans
- 3. a natural resource that can be replaced as fast as it is used
- 5. nonrenewable resources that include rocks, minerals, soil, and fossil fuels
- 6. a natural resource that humans use to make objects or consume as food or drink