Across
- 2. There are rising demand for water when the world population increases.
- 4. Being in a weak or unfavourable position.
- 7. Process of filtering water to remove large sized particles and bacteria from the water.
- 13. Economic activity concerned with the processing of raw materials
- 15. Water released from clouds in the form of rain or freezing rain.
- 20. 2% of the water is stored as snow and____.
- 21. Water____ occurs when there is a shortage of water to meet the needs of people.
Down
- 1. Water runoff towards the lakes, rivers and oceans.
- 3. ____ distribution of water causes some countries ton have an abundant supply of fresh water.
- 5. Bringing in goods from other countries.
- 6. The process of water filtration used in desalination.
- 8. ____ Agreements
- 9. osmosis Process of forcing water through a special membrane to remove very small particles.
- 10. One of the reclaimed waters in Singapore.
- 11. Increasing the ____ of water to control the rising demand of water.
- 12. An area which collects rainfall.
- 14. Fresh water stored in rivers, streams and lakes is called ____ water.
- 16. Water____ is produced when impurities are removed from waste water through a treatment process.
- 17. ____ refers to the careful use of resources to ensure that wastage is kept to a minimum.
- 18. Oil leak into the ocean causing water ____.
- 19. Knowledge,skills and tools that people use to meet their needs.