Across
- 1. strange weather shows that we have this
- 3. we breathe this out – carbon …
- 4. using something again
- 5. energy from the sun
- 7. coal and gas are examples of these
- 10. when there is no rain you have this
- 11. they use a renewable energy source
- 12. gases and chemicals cause this
Down
- 2. many people use this type of light bulb
- 6. you put this in your car
- 8. how much energy you use is your carbon …
- 9. carbon dioxide is a … gas