Dhiren M Doshi Solutions for Chapter: Wastewater Story, Exercise 1: EXERCISE
Author:Dhiren M Doshi
Dhiren M Doshi Science Solutions for Exercise - Dhiren M Doshi Solutions for Chapter: Wastewater Story, Exercise 1: EXERCISE
Attempt the practice questions on Chapter 18: Wastewater Story, Exercise 1: EXERCISE with hints and solutions to strengthen your understanding. SCIENCE MADE EASY solutions are prepared by Experienced Embibe Experts.
Questions from Dhiren M Doshi Solutions for Chapter: Wastewater Story, Exercise 1: EXERCISE with Hints & Solutions
EASY
7th CBSE
IMPORTANT
Which is the first stage of sewage treatment?
EASY
7th CBSE
IMPORTANT
Give one harmful effect of sewage.
EASY
7th CBSE
IMPORTANT
Which organism is used in vermicomposting toilets to treat human excreta?
EASY
7th CBSE
IMPORTANT
How is activated sludge formed?
MEDIUM
7th CBSE
IMPORTANT
Biogas is a mixture of gases. Give the name of those gases.
EASY
7th CBSE
IMPORTANT
Why chemicals like insecticides should not be thrown down the drain?
MEDIUM
7th CBSE
IMPORTANT
How sanitation can be maintained at public places?
EASY
7th CBSE
IMPORTANT
What does the bar screens remove from sewage during primary treatment.
