water resources

4. Weak/unfavourable position
5. A supply of water
11. A protected area of importance for wildlife, flora, fauna or features of geological or other special interest
12. Water shortage problem
15. The process of forcing water through a special membrane to remove very small particles
19. To revise the terms of (a contract) so as to limit or regain excess profits gained by the contractor
20. 1 of the method of desalination
21. A process of removing undesirable chemicals, materials, and biological contaminants from raw water

1. An outdoor water-use restriction is a ban or other lesser restrictions put into effect that restricts the outdoor use of water supplies
2. 1 of the measures to conserve water supply
3. Process of filtering water to remove larger sized particles and bacteria from the water
6. An area over which rainfalls and is collected
7. Process when water is boiled and the water vapour is collected and condensed into fresh water
8. Arrangement between 2/more countries regrading the supply and use of water resources over a specific period of time
9. Process of converting sea water into fresh water by removing salt from the sea water
10. The knowledge,skills and tools that people use to meet their needs
13. Ensuring that wastage is kept to a minimum
14. Process of making a product or service available
16. Is a natural or artificial lake, storage pond or impoundments from a dam which is used to store water
17. Cleaning of sea water
18. Is a process to change materials into new products to prevent waste of potentially useful materials