What would happen if you didn’t drink water?

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Across
  1. 4. a serious disease with growing harmful cells
  2. 5. a disease where the body has trouble using sugar
  3. 9. body parts that receive signals
  4. 15. the world or area around us
  5. 16. to work or do something properly
  6. 17. when something doesn’t work as well as it should
  7. 19. made more exact or better
  8. 20. becomes slower
Down
  1. 1. not having enough water in the body
  2. 2. paths or openings for something to move through
  3. 3. very strong or serious
  4. 6. becomes smaller
  5. 7. a green vegetable with tiny tree-like tops
  6. 8. throwing up from the stomach
  7. 10. one part out of five
  8. 11. good effects or advantages
  9. 12. moving a lot or doing things
  10. 13. drinks
  11. 14. made weaker by adding water
  12. 18. how someone feels emotionally