What are suspended impurities in sewage are called?
sewerage
sewage impurities
contaminants
sullage
What is solid compound of sewage called?
sullage
sludge
activated sludge
solid sewage
Septic tanks, chemical toilets and composting are examples of ____________
on-site composting
off-site composting
composting
toilets and bathrooms
Aerobic bacteria that settle in the bottom of the tanks after clarification are referred to as_________
diactivated sludge
sludge
bacteria
activated sludge
Which year was as the international year of freshwater ?
2007
2003
2004
2017
What kind of waste is sewage?
solid waste
liquid waste
gas waste
sewer waste
I was used in ancient in India for water storage and recharge.Guess me.
bawri
talab
well
lake
____________ is the upper limit of water level under the ground.
water table
water cycle
under ground water
water bubble
How is water supplied to our homes
through seeping of water
through a network of pipes
through people
through the water board
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