Across
- 4. CO2 is an example of a ........ (10,3)
- 7. You can use a ....... instead of a car (4)
- 8. another example of a harmful has is ....... (7)
- 9. Trees convert CO2 into .......... (6)
Down
- 1. World temperatures are ....... (6)
- 2. Reduce, Reuse, ........ (7)
- 3. The mark your energy usage leaves on the environment is your ....... (6,9)
- 5. The 'blanket' that's meant to prevent the earth from overheating is the (5,5)
- 6. CO2 is ........ (67)
- 9. Turn the lights ....... when you leave a room (3)