Across
- 1. an example of this is 1:3
- 3. water goes around in this
- 6. a type of gas that weakens our atmosphere
- 9. a large piece of ice
- 10. water that comes off land into rivers or lakes
- 11. fuel that cannot be replenished within a human lifetime
- 14. a large usually uninhabitable piece of land
- 16. how easy it is to replenish
- 17. the stage in the water cycle in which it rains
- 18. belonging to a social group
Down
- 2. the stage in the water cycle in which water turns to water vapour
- 4. a line that wraps around the earth
- 5. where a compass points
- 7. surrounding the earth
- 8. a big wave
- 12. something impossible to replenish within a human lifetime
- 13. the amount of space between two things
- 15. relating to ordinary citizens