Across
- 4. The presence of harmful substances in the environment
- 6. Things that show or tell you about the environment
- 8. The variety of life in the world or a particular habitat
- 10. Chemicals used to kill pests
Down
- 1. Animals like frogs and salamanders that live both in water and on land
- 2. A community of living organisms and their environment
- 3. The place where animals live
- 5. The process of studying the environment and its changes
- 7. A group of similar organisms that can breed and produce offspring
- 9. Rain Harmful rain caused by pollution