Across
- 5. the energy produced by heat within earth.
- 8. electrical energy produced by the flow of water.
- 9. a natural resource that can be replaced at the same rate as it is consumed.
- 11. Forms at a rate that is much slower than as it is produced.
- 13. The process bu wich the nucleus of a heavy atom splits in two or more parts.
- 15. plant material, manure or any other organic matter that is used as an energy source.
Down
- 1. the preservation and wise use of natural resources.
- 2. the energy produced by heat within earth.
- 3. A non renewable energy resource that formed from remain organisms that lived long time ago.
- 4. the process of recovering valuable useful materials from waste or scrap; the process of reusing some items.
- 6. The process at by wich nuclei of small atoms combine to form a new and massive atom.
- 7. a mineral deposit within a rock formation.
- 10. Mineral deposists that can be removed profitably.
- 12. A mineral, rock or organic material that can be used for as jewerly when is polished and cut.
- 14. deposite: A deposit that contains a valuable mineral.