EASY
7th CBSE
IMPORTANT
Earn 100

Floating impurities (such as grease) in the sedimentation tank are removed by _____.

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Important Questions on Wastewater Story

EASY
7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Wastewater Story>Exercise>Q 3
Clarified water is cleared after removal of _____.
EASY
7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Wastewater Story>Exercise>Q 1
What is eutrophication?
EASY
7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Wastewater Story>Exercise>Q 2
List three harmful effects of sewage.
MEDIUM
7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Wastewater Story>Exercise>Q 3
Name any two low cost onsite sewage disposal systems for human wastes.
MEDIUM
7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Wastewater Story>Exercise>Q 4
Name the various contaminants present in sewage.
EASY
7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Wastewater Story>Exercise>Q 1
What is activated sludge?
MEDIUM
7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Wastewater Story>Exercise>Q 2
What is meant by clarified water?
MEDIUM
7th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Wastewater Story>Exercise>Q 3
What is meant by wastewater treatment plant?