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Question

Which device is used to purify water for drinking purpose?


Your Answer
A
Salt remover
Correct Answer
B
Water purifier
Your Answer
C
Stone cleaner
Your Answer
D
Mud remover

Solution

The correct option is A Water purifier
A water purifier is a device which removes undesirable biological and chemical contamination (or wastes). It functions to remove all the impurities like salt, mud, sand, stones, clay, etc., and cleanses the water completely. 
The other devices in the options clean only one impurity. 

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