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ways put hands in the stored drinking water.
19. Name two chemicals used for killing germs in water:
20. Write two characteristics of drinking water.
WORKBOOK LOOKING AROUND (CLASSIID/17
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19. Chlorine powder and Borax powder.
20. Characteristics of drinking water are :
- They should be free of germs.
- They should contain minerals necessary for humans.
- They should not contain any other harmful substances.
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