• Written By Zeshan Naz
  • Last Modified 27-01-2023

NCERT Solutions for Class 7 Science Chapter 18 Wastewater Story

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NCERT Solutions for Class 7 Science Chapter 18 Wastewater Story: The 18th chapter of Class 7 Science is Wastewater Story. Top academic experts have prepared the solutions provided here at Embibe as per the latest CBSE guidelines.

Wastewater Story is an important chapter that teaches students the importance of water. Therefore students can start practicing the questions to help them prepare for the exams. Moreover, the academicians at Embibe have included over 500 questions from more than 30 books in the NCERT Solutions for Class 7 Science Chapter 18. These questions are devised to strengthen the understanding of the concept. Continue reading to learn more.

NCERT Solutions for Class 7 Science Chapter 18: Important Topics

Every topic comes with a wide range of questions to ensure that students have all the exposure they need. In fact, students can also refer to Embibe explainers, NCERT exemplars and videos to enrich their learning. The practice questions are designed to help students solve questions of different levels of difficulty. The table below lists the important topics that are covered in Class 7 Science Chapter 18.

TopicsTopics
Water, Our LifelineBetter Housekeeping Practices
What is SewageSanitation And Disease
Water Freshens Up- An Eventful JourneyAlternative Arrangement For Sewage Disposal
Wastewater Treatment PlantSanitation At Public Places

NCERT Solutions for Class 7 Science: Points to Remember

Below, we have summarised a few points from the chapter – Wastewater Story that students can refer to while learning the concepts and revision. In addition, they can find detailed points for the topics on Embibe platform.

  • Sewage is a liquid waste that contains mostly dirty water, dissolved, and suspended impurities.
  • The solid matter that settles at the bottom of the sedimentation plant is known as sludge.
  • A sewerage system is a network of small and big pipes from the point of being produced to the point of disposal or the wastewater treatment plant.
  • Sewage treatment consists of three stages.
  • The suspended matter in the sewage is used to make fertilizers.

NCERT Solutions for Class 7 Science: All Chapters

Class 7 students can find the NCERT Solutions for all chapters of Science from the links below.

FAQs

Q.1: How to get the NCERT Solutions for Class 7 Science Chapter 18

Ans: Students can access the NCERT Solutions for Class 7 Science Chapter 18 at Embibe for free.

Q.2: Why should oils and fats not be released into the drain?

Ans: Oils and fats should not be released into the drain because drains get blocked by cooking oil and fats.

Q.3: Name two chemicals used to disinfect water

Ans: Chlorine and Ozone are used to disinfect water.

Q.4: Explain the function of bar screens in a wastewater treatment plant.

Ans: Bar screen removes large objects like rags, sticks, cans, plastic packets and napkins.

Q.5: What are the benefits of NCERT Solutions for Class 7 Science Chapter 18?

Ans: Referring to the NCERT Solutions for Class 7 will help a student practice and clear their concepts while preparing for their exams.

Q.6: How many topics are there in NCERT Solutions for Class 7 Science Chapter 18?

Ans: There are 8 main topics covered in chapter 18 of NCERT Solutions Class 7.

Adaptive Practice with Solutions To Help You Ace Important Topics for 7th NCERT Science