Across
- 4. Rain containing pollutants like sulfuric and nitric acid
- 7. When too many nutrients in water cause algae to grow like crazy, which can harm aquatic life
- 9. Clearing out forest for other uses
- 10. Long-term changes in temperature and weather patterns
- 11. Resources that cannot easily be replaced
- 13. Protecting natural resources for the future
- 14. Community of living things and their environment
Down
- 1. Protective layer in the Earths atmosphere that absorbs UV radiation
- 2. Variety of life in an area
- 3. Natural home or environment of an animal, plant, or other organism
- 5. Meeting our needs without messing up future generations'chances to meet theirs
- 6. Protecting natural resources for the future
- 8. Non-native species that harm the environment
- 12. Harmful substances in the environment