This chapter revolves around the impact of man’s activities on a river. It tells us how the river becomes polluted and measures that are to be taken to save the river. Also, the chapter tells us about the sea and why we can’t drink sea water.
The benefit of using NCERT Solutions Class 4 EVS Chapter 13 is , it summarizes all these concepts into a well structured and informative content designed to help students become aware of the environment. From an examination perspective, these topics are quite important as they help the student think outside the box. Find answers to more important questions with our well-designed and illustrative NCERT solutions for Class 4 EVS.