Across
- 2. Something threatening an organism's survival.
- 4. Byproducts of mining.
- 6. Unrefined metal.
- 10. Rocks far from their source.
- 11. Crushed rock on earth's surface.
- 12. A different form of pollutant.
- 13. Causes a loss of natural resources.
- 14. A phenomena involving indoor pollution.
Down
- 1. Using less resources than is produced.
- 3. Unweathered rock.
- 5. A type of resource with a fixed amount.
- 7. Water with little dangerous content.
- 8. Anything an ecosystem provides.
- 9. The process of making freshwater.