Across
- 2. term describing the benefits humans receive from natural systems
- 5. gaseous chemical found in Earth's stratosphere that absorbs harmful UV radiation
- 7. caused by poor livestock practices and can lead to desertification
- 8. pollutant emitted directly from a source
- 11. pollutants that form by chemical reaction in the atmosphere
- 16. caused by excessive CFC release in the 80s and 90s
- 17. an area's temperature and precipitation
- 18. an area defined by dense human settlements
- 19. a weather phenomenon where a blanket of warm air is trapped under a layer of cool air
- 21. common chemical found in aerosol sprays that damaged the ozone layer
Down
- 1. determined by a location's distance from the equator
- 3. leading cause of biodiversity loss in rainforests
- 4. planetary phenomenon caused by excessive greenhouse has emissions
- 6. the physical and organizational structures required for modern society
- 9. climate pattern caused by warm surface waters in the Pacific ocean that results in severe weather in the southern US
- 10. sudden death in an aquatic ecosystem caused by polluted rainfall
- 12. gases that trap the suns thermal energy within Earth's atmosphere
- 13. process by which rural areas become more populated
- 14. type of air pollution that commonly occurs in cities caused by vehicle exhaust reacting with moisture or sunlight
- 15. phenomenon where urban areas experience higher temperatures than surrounding areas
- 20. areas found outside of cities and towns