EcoKnowledge

5. The action of converting waste into a reusable material
7. Of or relating to water
9. The introduction of harmful materials into the environment
10. Of or relating to birds
12. The natural environment or home of an animal, plant or other organism
13. Eats primarily plants (deer for example)
14. Eats a combination of plants and animals (raccoon for example)
17. The variety of life in the world, habitat or ecosystem
18. A geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life (example: desert)

1. Of or relating to River areas
2. The study of the interactions plants, animals and their environments
3. Remnant or trace of an animal or plant of the past petrified in segments of Earth's crust
4. Of or relating to the Earth or land
6. Eats mainly fungi(mushrooms)
8. Eats primarily meat (hawks for example)
10. The layers of gases surrounding the earth
11. A structure made or chosen by a bird to lay its eggs and raise its young
15. Returning a habitat to its previous condition
16. Most active during the night
17. The study of living organisms