Price of water puzzle

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Across
  1. 3. (or 'faucet')device to open water supply
  2. 4. past participle of 'rise'
  3. 7. rubbish (garbage) thrown on the ground
  4. 8. a hole in the ground to access water
  5. 10. large area to store water, like a lake
  6. 14. the (natural) world around us
  7. 16. environmental campaigner Greta's surname
Down
  1. 1. = shortage or insufficiency of things we need
  2. 2. a large inland expanse of water
  3. 5. a small river
  4. 6. = contaminate
  5. 9. eat, drink or use resources
  6. 11. water turned into a gas by boiling
  7. 12. the mark left when you walk on sand or earth
  8. 13. a natural material used to make clothes
  9. 15. person who does not eat meat