Across
- 3. / volcano errupting
- 4. / the natural flow of water to create energy
- 6. / the earth's average surface temperature is rising due to greenhouse gasses
- 7. / solar panels take this in
- 8. / long term shifts in temperature
- 9. / energy produced from the process of nuclear fusion or fission
- 10. / heat within the earth
- 12. / carbon dioxide, methane, nitrous oxide,watervapor
Down
- 1. / wind turbines use this to create energy
- 2. / a fossil energy source that formed deep beneath the earth's surface
- 5. / renewable organic material
- 6. effect / the trapping of the sun's warmth in a planet's lower atmosphere
- 8. / High amount of carbons that is very combustible
- 11. / burning fossil fuels
- 13. / A viscous liquid deprived from petroleum