Wastewater Management

We should not throw cooking oil and paint down the drain because

• they break the pipe

• they harden and clog the pipe

• they flow through the drain freely

• None of these

Septic tanks are mostly used in

• Urban cities

• Rural villages

• Isolated areas

• Semi-urban areas

Sewage in large cities is known as

• Corporation wastewater

• Municipal wastewater

• Rural wastewater

• Urban wastewater

This is the part where solid wastes are allowed to settle down and light floatable wastes rise

• Grit Chamber

• Sedimentation Tank

• Aeration Tank

• None of These

Dried _____ is used as manure

• Slurry

• Sewage

• Sand

• Sludge

Which of these is not a source of wastewater?

• Houses

• Sewage

• Industries

• Hospitals

Why shouldn't we pour pesticides & fertilizers down the drain?

• It clogs the drain

• It kills the sludge digestin' bacteria

• Cracks are formed in the pipelines as these things harden

• Pollutes the water bodies

A chemical to disinfect water

• Copper Sulphate

• Distilled Water

• Iron Sulphate

• Chlorine

Hazardous waste is:

• corrosive
• ignitable
• toxic
• all of these

The three main categories of waste include municipal solid waste, hazardous waste, and:

• industrial waste 
• radioactive waste 
• wastewater
• green waste