Water Resources

1. In Africa, the frequent lack of rain has led to insufficient water supply for ________.
3. A __________ area refers to an area over which rain falls and is collected.
6. An International _________ on water is an arrangement between two or more countries regarding the supply and use of water resources over a specific period of time.
7. NEWater is piped into the reservoirs before the water is ___-_______ to homes, factories and schools.
8. The process of water filtration used in desalination where water is boiled and the water vapour is collected and condensed into fresh water.
12. Some fresh water can also be found deep underground and is also known as __________.
13. The process of filtering water to remove larger sized particles and bacteria from the water.
15. Recycled water or water __________ is produced when impurities are removed from waste water through a treatment process.
16. Reverse __________ is the process of forcing water through a special membrane to remove very small particles such as bacteria and dissolved salts, from water.
17. Much of the world's water supply is also used in __________ and in agriculture.
18. The knowledge, skills and tools that people use to meet their needs.

1. Rainwater is _________ by the trees and plants and is then absorbed by the soil layers on the ground.
2. The use of advanced __________ technology has made it possible to further treat used water to produce a very high grade water known as NEWater.
4. Fresh water are increasingly __________ by human activities.
5. PUB set up mobile exhibitions and the use of _____-_____ devices.
8. The process of converting sea water into fresh water by removing salt from the sea water.
9. Being weak or unfavorable position.
10. Water __________ occurs when there is shortage of water to meet the needs of people.
11. The treated water is suppiled to households for __________.
14. The careful use of resources to ensure that wastage is kept to a minimum.