EASY
7th CBSE
IMPORTANT
Earn 100

What are ‘black water’ and ‘grey water’ in the context of sewage?

Important Questions on Waste Management

EASY
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 18 - Waste Management>Exercises>Q A
What are the three sources of liquid waste?
EASY
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 18 - Waste Management>Exercises>Q A
What do you understand by ‘treating’ waste water?
MEDIUM
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 18 - Waste Management>Exercises>Q A
Mention one use that the sludge from sewage treatment can be put to.
MEDIUM
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 18 - Waste Management>Exercises>Q A
Mention two things we can do to reduce the burden on the wastewater disposal system.
MEDIUM
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 18 - Waste Management>Exercises>Q B
What are the problems with having open rainwater drains?
MEDIUM
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 18 - Waste Management>Exercises>Q B
Why has it become important for us to find ways of managing the waste we generate?
EASY
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 18 - Waste Management>Exercises>Q B
What happens during the primary stage of sewage treatment?
HARD
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 18 - Waste Management>Exercises>Q B
How is organic matter separated from sewage?