Across
- 3. _ water contains salts beneficial for health
- 6. Nitrogen dioxide dissolves in rain to form _ acid
- 7. Water borne disease
- 9. plants release water vapour by this process
- 10. __ forms a bulky sticky ppt to remove impurities
- 12. water is called a __ solvent
- 14. _ acid causes erosion of rocks containing lime
- 15. natural water with most dissolved impurities
Down
- 1. 1st step in purification town water supply
- 2. Water found on land is commonly called ___
- 4. __ membrane in the body contains 99% water
- 5. water in proteins is present in __ state
- 8. _ water has a flat insipid taste
- 11. water is treated with __ to kill germs
- 13. Water suitable for drinking is called _ water