Across
- 1. Animals that hunt other animals for food
- 6. A person who works to protect the environment
- 9. A layer of gases surrounding Earth that supports life
- 12. A wide variety of life forms on Earth
- 14. The natural world, including plants, animals, and landscapes
- 16. A living thing that produces its own energy from sunlight
- 18. A change in climate patterns over time
- 20. All the plants and animals living in a specific environment
Down
- 2. A species that is at risk of disappearing forever
- 3. A sudden and dramatic decrease in animal or plant populations
- 4. A type of plant that provides oxygen and absorbs carbon dioxide
- 5. A person who studies animals in their natural habitats
- 7. The process by which plants make food using sunlight
- 8. A place where an animal or plant normally lives
- 10. A large mammal that is a symbol of conservation efforts
- 11. A group of animals or plants that are similar and can reproduce
- 13. The destruction of forests, often for agriculture
- 15. A large natural stream of water flowing to the sea
- 17. An area of land where few plants or animals can survive due to lack of water
- 19. Natural resources that can be replaced, such as wind or solar power