Across
- 4. Animals living in their natural environment.
- 5. Relating to plants and plant science.
- 8. To protect and preserve natural resources.
- 10. Not harmful to the environment; sustainable.
- 11. Trash or garbage left carelessly in public places.
- 13. A person who works to create social or environmental change.
- 15. At risk of becoming extinct; nearly gone.
- 16. Hazardous materials that pose a danger to health or environment.
- 17. The natural home or environment of an organism.
- 19. A site where waste is buried underground.
- 20. Areas of land saturated with water; marshes or swamps.
Down
- 1. The total greenhouse gases produced by human activities.
- 2. Dense tropical forest with high rainfall.
- 3. Poisonous or harmful to living things.
- 6. Energy from the sun used to generate electricity.
- 7. The scenery or terrain of a particular area.
- 9. A community of organisms and their physical environment.
- 12. The surroundings or conditions in which something lives.
- 14. Chemical used to kill harmful insects or pests.
- 18. Seasonal movement of animals from one place to another.