Across
- 3. Protective layer against UV rays
- 6. Harmful substance in the air or water
- 8. Gas essential for human respiration
- 9. Power from moving air
- 10. wet season and rain in australia
- 13. dry season and winds in australia
Down
- 1. process in allowing earths resources
- 2. Process by which plants make food
- 4. Melting of polar ice contributes to this
- 5. Layer of gases surrounding Earth
- 7. Type of fuel formed from ancient remains
- 11. Material that can be broken down naturally
- 12. Renewable energy source from the sun