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Subject :NSO    Class : Class 4

Which of the following is the best method of purification of muddy water?

A
B
C
D None of these


Ans 1:

Class : Class 4
Won't the mud mix with the water?

Ans 2:

Class : Class 5

Ans 3:

Class : Class 6

Ans 4:

Class : Class 1
Option A is repeated

Ans 5:

Class : Class 8
C

Ans 6:

Class : Class 7
5678765456

Ans 7:

Class : Class 7

Ans 8:

Class : Class 4
Don't we have to use Distillation or evaporation

Ans 9:

Class : Class 7

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