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NCERT Solutions for Class 8 Science Chapter 18- Pollution of Air and Water

NCERT Solutions for Class 8 Science Chapter 18- Pollution of Air and Water cover all topics and exercises of Chapter 18. This chapter introduces you to various fundamentals concepts such as introduction to air pollution, causes and effects of air pollution, measures to reduce air pollution, the impact of air pollution on Taj Mahal, global warming, water pollution, causes and effects of water pollution, measures to reduce water pollution and methods to purify polluted water. These NCERT Solutions answers all questions of the exercise provided at the end of Class 8 Science Chapter 18.

There is a total of 11 questions available in this chapter. Our NCERT Solutions have been devised to clear all your doubts instantly. Solutions for Class 8 Science Chapter 18- Pollution of Air and Water have been prepared in a lucid language which is fully accurate and cover a wide range of question types that are vital from the exam standpoint. Our NCERT Solutions for Chapter 18 have been diligently drafted on the basis of the latest and updated Syllabus and Science Book.

Instasolv’s well- structured and comprehensive NCERT Solutions make learning an easier. They contain all detailed explanations, diagrammatic illustration and relevant examples to ensure you learn and revise all topics of the chapter quickly and effectively. Learning from our NCERT CBSE Class 8 Science Chapter 18 solutions will not only make you thorough with the subject matter but also give you and your exam preparation an edge over others. With our effective and proven study tips, nothing can stop you from excelling in your exams.

NCERT Solutions for Class 8 Science Chapter 18- Pollution of Air and Water

NCERT Solutions for Chapter – ‘Pollution of Air and Water’ speak about the Pollution of Air and Water. Here,  you will learn about the different causes of water and air pollution. You will also learn their effects on our environment. From this chapter, you will also come to know about the different methods that people can use to reduce water and air pollution. Below is a list of the topics covered in CBSE NCERT Class 8 Science Chapter 18. 

  • Introduction to air pollution

Under this section, you will learn about the definition of pollution and its various categorizations. Our NCERT Solutions for Class 8 Science Chapter – ‘Pollution of Air and Water’ contain a full description of air pollution, sources of air pollution, and the harmful effects of air pollution on human beings and nature. 

  • Air pollution

In this section, you will learn in detail about how air pollution is caused by the accumulation of harmful compounds in the air. This chapter discusses in detail about different compounds like carbon dioxide, carbon monoxide, Sulphur, nitrogen, CFCs and particulate matters. 

  • Taj Mahal

This section discusses all aspects of air pollution. It tells you how air pollution has significantly degraded the quality of atmospheric air which has lead to many adverse effects. This section talks about the noticeable changes on the exterior of the Taj Mahal due to the presence of toxic pollutants in the air. In this section of CBSE NCERT Class 8 Science Chapter 18, you will study how the presence of sulphuric acid, carbonic acid, and nitric acid in the air is damaging the marble on the monument.

  • Global warming

In this section, you will learn about the causes and effects of global warming. You will gain knowledge about various greenhouse gases and learn about the greenhouse effect and how it leads to global warming. 

  • What can we do?

This section teaches about different measures that can be taken to reduce air pollution. You will study different methods in detail.

  • Water pollution

This topic explains what water pollution is and what are the causes of water pollution. It tells you that water pollution is caused due to the accumulation of toxic waste materials in water bodies. NCERT Solutions for Class 8 Science Chapter 18- Pollution of Air and Water, covers important topics such as water pollutants, and effects of water pollution on the river Ganga. It also explains the definition of potable water, how it is affected by contaminants, and the different methods of purifying polluted water for everyday use. 

NCERT CBSE class 8 science chapter 18 exercises

In this chapter of NCERT CBSE Class 8 Science Chapter 18 – Pollution of Air and Water comprises a total of 11 questions. Most of the questions are direct questions.  The questions are from all the topics mentioned above and follow the pattern of CBSE examination question papers. 

  • Question 1 asks you to write down the different ways through which water gets contaminated. 
  • Question 2 asks about the different ways of reducing air pollution. 
  • Question 3 asks you to elaborate on whether transparent and clear water is suitable for drinking. 
  • Question  5 asks to state the differences between polluted air and pure air. 
  • The 6 to 11 ask to test your understanding of different topics such as causes and effects of air and water pollution, causes and impact of acid rain, greenhouse gas, greenhouse effect, global warming, the effect of air pollution and the result of high concentration of nutrients in water bodies. 

This exercise will help you in getting a thorough understanding of the different topics covered in this NCERT CBSE Class 8 Science Chapter 18. You will surely score good marks in your examination if you prepare sincerely with this study material.