EASY
7th CBSE
IMPORTANT
Earn 100

Explain the function of bar screen in a wastewater treatment plant.

Important Questions on Wastewater Story

MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 18 - Wastewater Story>Short Answer Type Questions>Q 23
What is sludge? Explain how it is treated.
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 18 - Wastewater Story>Short Answer Type Questions>Q 24
Name two useful substances which are produced by the treatment of sewage. State their uses.
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 18 - Wastewater Story>Short Answer Type Questions>Q 25
What is the purpose of bubbling air into the aeration tank during the treatment of sewage?
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 18 - Wastewater Story>Short Answer Type Questions>Q 26
Name the various wastes which should not be thrown down the drain. Why?
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 18 - Wastewater Story>Short Answer Type Questions>Q 27
Why should oils and fats not be released in the drain?
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 18 - Wastewater Story>Short Answer Type Questions>Q 28
What is a vermi-processing toilet? Name the useful by-product obtained from such toilets.
MEDIUM
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 18 - Wastewater Story>Short Answer Type Questions>Q 29
What will happen if the large amount of waste generated at public places is not disposed of properly?
HARD
7th CBSE
IMPORTANT
AWARENESS SCIENCE for Seventh Class>Chapter 18 - Wastewater Story>Short Answer Type Questions>Q 30
With the help of an example, outline your role as an active citizen in relation to sanitation.