Across
- 1. Kind of car that uses both gas and electricity (6 letters)
- 7. Use less energy (4 letters)
- 8. What trees provide (3 letters)
- 10. The act of conserving resources (10 letters)
- 11. Product of composting (4 letters)
- 14. Nonrenewable energy source (8 letters)
- 15. Natural home of a plant or animal (7 letters)
- 17. Type of reusable bottle (5 letters)
- 18. Eco-friendly fuel (7 letters)
- 19. Solar power source (3 letters)
Down
- 1. Kind of gardening without soil (10 letters)
- 2. Large body of salt water (5 letters)
- 3. Falling water used for energy (8 letters)
- 4. Animal protector (6 letters)
- 5. Ocean trash cleanup (5 letters)
- 6. Power from the wind (4 letters)
- 9. A container for recycling paper (3 letters)
- 12. Reusable shopping item (3 letters)
- 13. Protecting the environment (11 letters)
- 16. Underground water source (5 letters)