Rajas Khare
from
P G Garodia school, Mumbai
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:
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Ans 2:
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Aaryav Misra
from
Vibgyor High, Bengaluru
Class : Class 4
Don't we have to use Distillation or evaporation