Across
- 3. Term for the gradual increase in Earth's average temperature
- 6. Action to reduce waste by using items again
- 8. Gas responsible for global warming
- 9. Symbol of recycling consisting of three arrows
- 10. Organization credited with founding Earth Day in 1970
Down
- 1. Material commonly used for single-use water bottles
- 2. Method of reducing energy consumption by turning off lights and appliances
- 4. The date Earth Day is celebrated annually
- 5. Natural satellite of Earth
- 7. Type pf pollution caused by burning fossil fuels