Across
- 2. toxic gases expelled by cars
- 5. cutting down trees over large area
- 7. pollution of the atmosphere
- 8. a type of spray containing pressurised liquid
- 10. natural world in which people, animals and plants live
Down
- 1. it protects us from the Sun’s ultraviolent radiation
- 3. a large body in space that moves around the sun
- 4. a dense forest in a tropical region
- 6. rise in temperature caused by gases in the atmosphere
- 9. polluted water falling from the clouds