Class 8 Chapter 18 Pollution of Air and Water

Introduction

  • Our environment used to be very pure where fresh air and clean water were available.
  • Now the quality of is environment is falling down which affects our lives.
  • People suffering because of many waterborne diseases and poor air quality.
  • Water and air are of great importance in human lives in many ways but the harmful changes in the surroundings affect human life in a very bad manner.
class 8 Chapter 18 pollution of air and water