Across
- 3. Not traditional energy sources.
- 7. Another word for rubbish or garbage.
- 9. ... energy sources can be used again and again, and they won't end, e.g. the wind, the sun.
- 10. ... dioxide (CO2).
Down
- 1. The pattern of weather in a particular region.
- 2. Fossil fuels ... the environment (make dirty).
- 4. ... species are the kind of animal species that are in danger of dying out, e.g. leopards.
- 5. ... power generates energy from the sun.
- 6. ... warming is the increase of the average temperature of the Earth.
- 8. To re-use plastic, glass and paper materials.
- 11. An example of a fossil fuel.