water resources

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Across
  1. 2. A protected area of importance for wildlife, flora, fauna or features of geological or other special interest
  2. 3. The process of forcing water through a special membrane to remove very small particles
  3. 4. Water shortage problem
  4. 7. 1 of the method of desalination
  5. 10. Process of converting sea water into fresh water by removing salt from the sea water
  6. 12. A supply of water
  7. 13. Is a process to change materials into new products to prevent waste of potentially useful materials
  8. 15. Process of filtering water to remove larger sized particles and bacteria from the water
  9. 18. Process of making a product or service available
  10. 19. 1 of the measures to conserve water supply
Down
  1. 1. Arrangement between 2/more countries regrading the supply and use of water resources over a specific period of time
  2. 5. To revise the terms of (a contract) so as to limit or regain excess profits gained by the contractor
  3. 6. Process when water is boiled and the water vapour is collected and condensed into fresh water
  4. 7. A process of removing undesirable chemicals, materials, and biological contaminants from raw water
  5. 8. An outdoor water-use restriction is a ban or other lesser restrictions put into effect that restricts the outdoor use of water supplies
  6. 9. An area over which rainfalls and is collected
  7. 11. The knowledge,skills and tools that people use to meet their needs
  8. 14. Weak/unfavourable position
  9. 16. Ensuring that wastage is kept to a minimum
  10. 17. Is a natural or artificial lake, storage pond or impoundments from a dam which is used to store water
  11. 20. Cleaning of sea water