Across
- 2. A power source which doesn't get naturally replenished
- 5. A kind of resource which is renewable but needs management
- 11. Things that are inputs to production of goods and services.
- 13. Power source which uses the light of the sun to produce electricity
- 14. Derived from non-living things
Down
- 1. A power source which naturally replenishes
- 3. Resources used by humans
- 4. Power source which uses wind to produce electricity
- 6. Living or derived from living things
- 7. Limited in number
- 8. Power source which uses flowing water to produce electricity
- 9. Any natural substance that humans use
- 10. Power source which uses steam to produce electricity
- 12. a generic term for non-renewable energy sources