Across
- 2. The natural world around us
- 3. An element involved in greenhouse gases
- 5. Gases released into the atmosphere
- 7. Maintaining resources for future generations
- 9. Living organisms interacting with their environment
- 10. Long-term change in Earth’s climate
Down
- 1. Protecting natural resources
- 4. Harmful substances in the environment
- 6. The layer of gases surrounding Earth
- 8. Energy sources that replenish naturally