Across
- 2. Poisonous and harmful to people or nature
- 3. Things people throw away after using them
- 6. Power used to produce electricity or heat
- 8. To break down naturally over time
- 10. A very large body of salt water
- 13. A form of energy used to power lights and machines
- 16. Land surrounded by water
- 17. Places where people live
- 18. A material often used for bags and packaging
- 20. A container used to carry things
Down
- 1. The process of burning waste
- 4. A small Asian country known for its clean environment
- 5. A thick forest in a tropical area
- 7. Gray or black gas that comes from burning
- 9. Something hot that burns and produces heat
- 11. Thin slices of fried potatoes people like to eat
- 12. Living creatures such as birds, fish, or mammals
- 14. A place where waste is buried in the ground
- 15. To go away or become impossible to see
- 19. A small amount of food eaten between meals