1.

Name the various contaminants present in sewage

Answer» SEWAGE is a complex MIXTURE of many suspended soilds, organic and inorganic impurities disease CAUSING bacteria and other microbes . 

ORGANIC MATTER : Fruits , vegetables , human faeces etc
INORGANIC MATTER : nitrates , phosphates
BACTERIA : such as which cause cholera N typhoid
MICROBES: such as which cause dysentry
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