Across
- 2. gas that is released when coal is burned
- 4. most used energy source in Ecuador
- 5. a combustible mineral made of carbon
- 6. country with most natural gas reserves
- 11. causes nearby water to become orange and harmful to living things
- 12. type of energy that uses the sun as its source
- 13. country with most energy use
Down
- 1. type of energy that uses water
- 3. provide 80% of the worlds energy
- 6. An an energy source that can be replenished
- 7. type of nuclear energy where atoms are combined
- 8. The ability to do work
- 9. first stage of the coal formation process
- 10. highest grade of coal