Science, asked by vaibhavsonawane061, 3 months ago

solids like faeces settel at the bottom and are removed with a scrapper . This is the​

Answers

Answered by princeameta2882007
0

Explanation:

Solids like faeces settle at the bottom and are removed with a scraper. This is the sludge. A skimmer removes the floatable solids like oil and grease.

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