Across
- 2. water from dams or ocean waves
- 5. any combustible organic material, as oil, coal, or natural gas.
- 6. a turbine powered by the wind.
- 7. resourses are almost impossible to replace
- 9. resources can be divided into fossil fuel and renewable resources
- 11. to depart and leave someone behind
- 12. any general or comprehensive division; a class.
- 13. heat radiation from the sun converted into electrical power.
Down
- 1. an increase in the earth's average atmospheric temperature that causes corresponding changes in climate.
- 3. resourses which are never run out
- 4. consume
- 8. colorless, odorless, incombustible gas, CO 2 , present in the atmosphere.
- 10. to furnish or provide with what is lacking or requisite