Natural Resources

In this chapter, we will study the forms, sources and uses of water and its importance for living beings. It also discusses the hard and soft water with a brief on the water cycle. It explains the scarcity of water and the methods to conserve it.

This chapter details the forests with its importance. It discusses the interdependence of plants and animals and how forests purify the air. We will also learn the causes of deforestation and methods to conserve forests.

This chapter discusses the sources of wastewater, sewer system and the process involved in the treatment of wastewater. It also discusses the alternative methods of sewage disposal and improper management of sewage along with the methods of reducing water contamination.