Across
- 5. The chemical used to keep insects away from farm plants.
- 8. A type of energy based on the use of radioactive materials.
- 10. A very hot and humid location it is a dense area with many trees and species of animals.
- 11. What we use to power our homes.
- 13. A type of animal that is close to extinction.
- 15. Chemicals that are given off into the air and contaminate it.
- 16. A vast plain in the far north or far south, its ground is made entirely of ice.
- 18. A pressurized canister of gas that sprays out a liquid.
- 19. The layer of atmosphere that keeps Earth warm.
Down
- 1. An area that typically has little to no water.
- 2. Precipitation mixed with pollution, harmful to the environment.
- 3. Non-domesticated plants and animals.
- 4. A large wall of water in the ocean that moves toward shore.
- 6. Area in which an organism grows up, including its surroundings.
- 7. The result of many years of giving off Carbon Dioxide and other chemicals.
- 9. Feces from an animal used to deliver nutrients to a plant.
- 12. The result when two tectonic plates collide.
- 14. A type of energy based on rays from the sun.
- 17. The leftovers of something that was used.
- 20. A rare spot in the middle of a desert with plants and water.