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Gravel and charcoal are used for the purification of water. |
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Answer» ❤✨Gravel and charcoal are used for the purification of water.✏First, the gravel layer CATCHES large pieces of debris, such as twigs, LEAVES, and BUGS. ✏Next, the sand layer catches smaller particles, such as dirt and grit, and makes the water LOOK clean.✏ FINALLY, the charcoal layer gets rid of bacteria and some chemicals. |
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