Question

what are the three steps to water purification?
sanitation, percolation, regulation
sedimentation (flocculation), filtration, disinfection
filtration, disinfection, filtration
filtration, sedimentation (flocculation), sanitation

Explanation:

Water purification typically involves sedimentation (flocculation) to make particles clump together, filtration to remove physical impurities, and disinfection to kill or inactivate pathogens.

Answer:

sedimentation (flocculation), filtration, disinfection