Lakhmir Singh and Manjit Kaur Solutions for Chapter: Wastewater Story, Exercise 3: Long Answer Type Questions
Lakhmir Singh Science Solutions for Exercise - Lakhmir Singh and Manjit Kaur Solutions for Chapter: Wastewater Story, Exercise 3: Long Answer Type Questions
Attempt the practice questions on Chapter 18: Wastewater Story, Exercise 3: Long 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 3: Long Answer Type Questions with Hints & Solutions
What is Sewage? State the various ways in which we produce sewage in our homes? What is the name of underground pipelines which carry sewage from our homes to the wastewater treatment plants?
Explain why, it is harmful to discharge untreated sewage into rivers, lakes or ground.
What is meant by the ‘treatment of sewage’? What is its main purpose?
Draw a labelled sketch of wastewater treatment plant. Describe the various steps involved in getting clear water from wastewater. Which fuel can be extracted during the process?
Explain the relation between sanitation and disease. State the various ways in which you can contribute in maintaining sanitation at public places.
What is a septic tank? Describe the septic tank based toilet with the help of a labelled diagram. Where are septic tank toilets used?
