Team A
Team B
Team C
Team D
100

People must have _______ water to drink in order to survive.

clean

100

Which is the best way to purify water?

boiling or filtration

100

During the purification process, filtration separates the________ impurities

solid

100

What does chlorination do to the water?

kills microorganisms

200

The container in which the water is poured gently after sedimentation is called_______

decanter

200

Which one of the following solids are insoluble in water?

sand, sugar, salt, detergent

200

Name any one diseases caused by drinking contaminated water.

cholera, jaundice, typhoid

200

The insoluble solid impurities that settle at the bottom is called

sediment

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