Across
- 2. needed for life
- 5. requires water, provides food
- 8. a large wall built on a river to stop its flow
- 9. the process of removing salt from water
- 10. a place with little to no rainfall
Down
- 1. people arelimited on water so that everyone can get some
- 3. a flowing source of freshwater
- 4. longest river in south west asia
- 6. water below the surface of the earth
- 7. a large,still, source of freshwater