NCERT Grade 7 Science Chapter 18, Wastewater Story deals with Water as a lifeline resource for life on earth. Water, Our Lifeline, What Is Sewage? Water Freshens Up — An Eventful Journey, Wastewater Treatment Plant (WWTP), Better Housekeeping Practices, Sanitation And Disease, Alternative Arrangement For Sewage Disposal And Sanitation At Public Places are the main topics discussed in this chapter. The chapter begins by discussing the importance of clean water available for consumption. The concept of sewage and its composition are further discussed in the chapter. Treatment of sewage and polluted water to make it fit for discharge is explained with the help of technical terms and diagrams that make it easy and interesting to learn.
NCERT Grade 7 Science Chapter 18, Wastewater Story further guides the students to become an active citizen and segregate wastes in a way to harm the water in the least possible manner.Sanitation, sewage disposal and sanitation at public places are discussed towards the end of the chapter. Information about measures adopted by the government and different organisations to keep the sewage and sanitation in check are mentioned in this section of the chapter. The chapter concludes by making the students understand their role in keeping the environment clean and healthy. Guidance to maintain good sanitation and call for a collective method for the same ends the chapter.
Get 100 percent accurate NCERT Solutions for Class 7 Science Chapter 18 (Wastewater Story) explained by expert Science teachers. We provide solutions for the questions given in Class 7 Science textbook as per CBSE Board guidelines from the latest NCERT book for Class 7 Science. The topics and sub-topics in Chapter 18 Wastewater Story are given below.
Ex 18.1 - WATER, OUR LIFELINE
Ex 18.2 - WHAT IS SEWAGE?
Ex 18.3 - WATER FRESHENS UP - AN EVENTFUL JOURNEY
Ex 18.4 - WASTEWATER TREATMENT PLANT
Ex 18.5 - BETTER HOUSE KEEPING PRACTICES
Ex 18.6 - SANITATION AND DISEASE
Ex 18.7 - ALTERNATIVE ARRANGEMENT FOR SEWAGE DISPOSAL
Ex 18.8 - SANITATION AT PUBLIC PLACES
We cover all questions in the chapter given below:-
Chapter 18 - 12 Questions with Solutions.
Other than given exercises, you should also practice all the solved examples given in the book to clear your concepts on Wastewater Story. Download the free PDF of Chapter 18 Wastewater Story and take the print out to keep it handy for your exam preparation.
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