Lakhmir Singh and Manjit Kaur Solutions for Chapter: Wastewater Story, Exercise 2: Short Answer Type Questions
Lakhmir Singh Science Solutions for Exercise - Lakhmir Singh and Manjit Kaur Solutions for Chapter: Wastewater Story, Exercise 2: Short Answer Type Questions
Attempt the practice questions on Chapter 18: Wastewater Story, Exercise 2: Short Answer Type Questions with hints and solutions to strengthen your understanding. AWARENESS SCIENCE for Seventh Class solutions are prepared by Experienced Embibe Experts.
Questions from Lakhmir Singh and Manjit Kaur Solutions for Chapter: Wastewater Story, Exercise 2: Short Answer Type Questions with Hints & Solutions
What is sludge? Explain how it is treated.
Name two useful substances which are produced by the treatment of sewage. State their uses.
What is the purpose of bubbling air into the aeration tank during the treatment of sewage?
Name the various wastes which should not be thrown down the drain. Why?
Why should oils and fats not be released in the drain?
What is a vermi-processing toilet? Name the useful by-product obtained from such toilets.
What will happen if the large amount of waste generated at public places is not disposed of properly?
With the help of an example, outline your role as an active citizen in relation to sanitation.
