A River’s Tale Revision Notes for Better Revision and Preparation
Class 4 EVS Chapter 13 explains the features of a river and how we are polluting them. This chapter explains one of the environmental issues that pose a great danger to our civilization and the marine ecosystem. A Rivers Tale summary will give you the exact idea of how river pollution is affecting us and how we can stop it.
To understand the context of this chapter, refer to A Rivers Tale revision notes prepared by the experts of Vedantu. The concepts will be clearer as the experts have used simpler language to explain the sections perfectly.
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FAQs on A River’s Tale Class 4 Notes CBSE EVS Chapter 13 [Free PDF Download]
1. How does river water become dirty?
The rivers come down from the mountains. When they reach the plain land, sewage and human activities make the river water dirty.
2. Why does the river water change colour in the plains?
Due to the overwhelming pollution in the river due to our activities, the colour of the river water changes in the plains.
3. How can we preserve rivers and keep away pollution?
Preserving rivers becomes easier when human activities are controlled. We should stop industrial wastewater from flowing into the river. Before disposing of water in the river, we need to culture it and make it free from harmful chemicals. We should also use bio-fertilizers and stop artificial chemicals from flowing into rivers due to rain.