Across
- 4. lakes and streams have too many nutrients
- 5. area immediately surrounding a plant
- 8. sources readily identified
- 9. circulation of nitrogen in nature
- 12. plant and animals that have not been domesticated
- 13. comes from many sources
- 14. large atmosphere above the plant
Down
- 1. tidal salt marshes, tidal freshwater marshes and mangrove wetlands
- 2. cycle of water in the environment
- 3. where wildlife live in nature
- 6. swamps, bogs, marshes, ponds, standing water
- 7. above and below ground surroundings
- 10. harmful materials get into the environment
- 11. movement of water into the soil