Article on how rivers can be kept pollution free
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Explanation:First write the Title in the top as Different ways of keeping the rivers pollution free....use the hints below..and write on it own
A river is a natural stream of fresh water fed by rain or melting snow during the monsoon. On its onward journey, many tributaries join in and the river and its tributaries form the drainage basin. The river collects the available runoff and groundwater discharge and flows into an ocean or a landlocked water body at the end of its journey. A perennial river is a living ecosystem, an essential component of the natural hydrological cycle and its continuous flow is an inbuilt character of its health.
The environmental flow is that optimum quantity of continuously flowing water in the river system which is essential for the discharge of its natural responsibility i.e. maintaining the ecosystem, safety or survival of dependent creatures, vegetation, etc. A river system performs its natural functions continuously. While during the rainy season, the flood waters transport sediments, organic matter and dissolved salts, during the dry months, the river flow carries dissolved compounds even though the transportation of rock fragments, soil, etc reduces considerably. Rivers form delta of different shapes and sizes by depositing these fine materials. A river dries when it stops receiving surface water and/or groundwater..