Primary treatment<span>. In the primary sedimentation stage, </span>sewage<span> flows through large tanks, commonly called "pre-settling basins", "primary sedimentation tanks" or "primary clarifiers". The tanks are used to settle sludge while grease and oils rise to the surface and are skimmed off.</span>
The twitter bird was named after the Boston Celtics basketball star Larry Bird
Answer:
They could build connections among groups and communities and provide information on specific issues to create awareness and influence social change. They could also organize protests against some certain issues.
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