Across
- 3. What is the process of breaking down organic matter into simpler substances? (13)
- 4. 80% of marine litter is made up of this (7)
- 6. A storm with a violent wind, in particular, a tropical cyclone in the Caribbean (9)
- 8. A group of organisms that can interbreed to produce fertile offspring (7)
- 13. A significant source of injury to marine life (12)
- 15. A mass of snow, ice, and rocks falling rapidly down a mountainside (9)
- 17. The complete disappearance of a species from earth (10)
- 18. The last Resort in the 3 R's (7)
- 19. 1 in 3 sea birds mistake plastic for this (4)
Down
- 1. The variety of life forms on earth (12)
- 2. Process where materials of earth's surface are loosened, dissolved, or worn away (7)
- 4. A tiny particle of solid that is suspended in the air or water (11)
- 5. A system formed by the interaction of a community of organisms with their physical environment (9)
- 7. The process by which gases in the atmosphere absorb and radiate energy as heat back to earth (16)
- 9. Gas that protects Earth from harmful UV radiation (5)
- 10. Rain, snow, sleet, hail, or drizzle (13)
- 11. A site where waste is dumped and/or buried (8)
- 12. Ocean temperatures are cooler than normal in the equatorial eastern pacific ocean (6)
- 14. Having little or no rain; too dry or barren to support vegetation (4)
- 16. What is the destruction of forests? (13)