Across
- 5. Lowest layer of the atmosphere. Where weather occurs.
- 8. A process caused by excessive nutrients in bodies of water, which creates dead zones.
- 9. A layer of gas found in the stratosphere
- 12. Environmental issues may cause a loss of this.
- 13. Aquatic creatures that can swim on their own
- 14. The position of an organism within a food chain.
- 17. The process of ocean water becoming more acidic. Harms shellfish
- 18. An aquatic zone with mixed salt and freshwater.
- 19. The process of change within an ecological community.
- 20. A humid biome with dense vegetation.
Down
- 1. The primary producer in aquatic environments.
- 2. A harmful greenhouse gas created from the burning of fossil fuels.
- 3. Energy gathered from heat within the Earth.
- 4. Organisms that obtain their energy by consuming other organisms
- 6. The bottom of the food chain, they create food for their entire food chain
- 7. A pollutant formed when vocs mix with sunlight.
- 10. When the entirety of a species is eradicated.
- 11. A U.S act passed to reduce and control air pollution.
- 15. A dry biome with few vegetation
- 16. Technology which emulates nature.