Across
- 5. / Renewable plants grown for food and materials.
- 7. / The practice of protecting and managing resources.
- 12. / The natural world that surrounds us.
- 14. / A renewable resource essential for drinking and agriculture.
- 16. / A renewable energy source derived from the sun.
- 17. / The power needed to do work or cause change.
- 19. / Renewable resources found in animal populations.
- 22. / Organic material used as a renewable energy source.
- 23. / A nonrenewable sedimentary rock often used in construction.
- 24. / A nonrenewable fossil fuel used for energy production.
- 25. / Electricity generated using the movement of water.
- 26. / Using resources in a way that meets present and future needs.
Down
- 1. / Nonrenewable solid substances found in nature.
- 2. / Nonrenewable resources formed from ancient organic matter.
- 3. / A radioactive element used in nuclear energy.
- 4. / Energy created by moving air.
- 6. / The process of reusing materials to conserve resources.
- 8. / Materials from nature used by humans.
- 9. / Nonrenewable resources mined from the Earth.
- 10. / A liquid fossil fuel extracted from the Earth.
- 11. / A type of resource that cannot be quickly replenished.
- 13. / A nonrenewable gaseous fossil fuel.
- 15. / A type of resource that replenishes naturally over time.
- 18. / Energy harnessed from ocean tides.
- 20. / Heat energy sourced from within the Earth.
- 21. / Renewable natural areas providing wood and oxygen.