Across
- 1. Powerful winter storm
- 4. Highly destructive storm that forms over the ocean
- 5. The first step we can take to reduce land pollution
- 6. Unit of measurement for accumulated chemicals
- 12. The second step we can take to reduce land pollution
- 13. Higher concentrations at higher trophic levels
- 15. Sulfur dioxide and Nitrogen monoxide are reactants
- 16. Overflow that will replenish groundwater
- 18. pH lower than 7
- 19. Trees cut down without being replaced
Down
- 1. Buildup of chemical substances in tissues
- 2. The third step we can take to reduce land pollution
- 3. Experience with the environment gained over generations (abbrev.)
- 6. "Power of Hydrogen" scale (abbrev.)
- 7. Mercury, Lead, Copper (2 wrds.)
- 8. Giant ocean waves
- 9. Overpopulation of pests
- 10. pH higher than 7
- 11. Threatens the health of an organism
- 14. Examples include droughts and earthquakes (2 wrds.)
- 17. Volcanic eruptions yield new ____
- 20. Younger wood inside the bark
- 21. Rapid movement of snow