@Wendykampot

Wendykampot

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Merci d’avance Water polluted by organic matter is : -less oxygenated -mire oxygenated -less rich in bacteria -Richer in bacteria
Responda
Une station d’épuration ne traite pas les eaux usées provenant : -de ta machine a laver -de la mer -des WC d’un hôpital
Responda

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