In the treatment of water, solid impurities are allowed to settle to the bottom. This particular stage in the entire purification is called________.
A
chlorination
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B
sublimation
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C
sedimentation
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D
distillation
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Solution
The correct option is C sedimentation Sedimentation is a process by which heavier impurities present in water settle down at the bottom of the container. The deposition of solid substance at the bottom of a liquid is called sedimentation.