Across
- 2. tropical forests
- 5. when there is no rain for a long time
- 7. oil, gas, coal
- 8. they produce electricity
- 9. harmful chemicals in the air and water
- 10. CO2
Down
- 1. the Earth is getting hotter
- 3. tropical storms
- 4. cutting down the forest
- 6. gases that trap the sun's heat