Across
- 3. a resource that is used faster than it can be replaced.
- 4. a resource that humans use to generate energy
- 7. energy released when the nuclei of atoms are split apart or combined.
- 9. energy obtained from the light of the sun
- 11. a nonrenewable resource that forms from the remains of dead organisms.
Down
- 1. energy obtained from water flowing
- 2. energy obtained from the heat of the Earth's interior
- 5. any resource that is used by humans.
- 6. the splitting of radioactive nuclei in an atom into fragments
- 8. a resource that is replaced by natural almost as fast as it is used.
- 10. energy obtained from the force of air moving an electric turbine