is the process in which impurities in water like sand or pebbles settle down at the bottom of container.
A
Sedimentation
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B
Screening
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C
Filtration
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Solution
The correct option is A Sedimentation Sedimentation is the process in which impurities present in water settle down at the bottom of container. Impure substance settles down at the bottom because it is heavier and clean water stays back at the top.