In which step of water purification does water move through sand beds and activated charcoal?

Question

Quizplus · Accepted Answer

Water moves through sand beds and activated charcoal during the filtration step of water purification. Therefore, the correct choice is E. Chlorination, aeration and settling, sedimentation, and storage are other steps involved in the water purification process, but they do not involve sand beds and activated charcoal filtration.

In Which Step of Water Purification Does Water Move Through