5th g pollution
by Odenangles
1. Match the names: Sewer - sewer - drain – mud deposit – physical and chemical process – chest – biological reactor – claveguera – exit of mud – upperblock – settler – recirculation of mud
by Odenangles
1. Match the names: Sewer - sewer - drain – mud deposit – physical and chemical process – chest – biological reactor – claveguera – exit of mud – upperblock – settler – recirculation of mud