Across
- 2. ecology, referred to shortly
- 3. what will melt if the earth continues to warm
- 5. decomposition
- 7. primary food source for many whale species
- 9. scum inside a fishtank
- 11. chemical symbol of helium
- 13. gives plants a green color
- 14. the process of liquid turning into vapor
- 15. a product of photosynthesis, something we all need
- 16. organization that recycles soft plastic
- 18. a group of whales
- 19. water moving continuously in a certain direction
- 20. first R in the "three R's" of recycling
- 21. dead batteries are a type of
Down
- 1. another word for compostable
- 4. where food gets digested
- 6. scientific classification of a squid
- 8. tree loving Dr Seuss character
- 10. where anglerfish and giant squid live
- 12. what controls the tides
- 17. type of zero emission generator, a large battery