Samagra Shiksha Portalma Dhoran 1 Thi 12 Ma Abhyash Karti Divyang Vidhyarthioni Entry Karva Babat.

Samagra Shiksha Portalma Dhoran 1 Thi 12 Ma Abhyash Karti Divyang Vidhyarthioni Entry Karva Babat.One of the most remarkable facts about water is its power to carry silt . This is the origin of the

characteristic colour of the water in rainfed tanks. This colour varies with the nature of the earth in the catchment area. Swiftly flowing water can carry fairly large and heavy particles. The finest particles, however, remain floating within the liquid in spite of their greater density and are carried to great distances. Such particles are, of course, extremely small, but their number is also great and very large amounts of solid matter can be transported in this way. The colour of the water changes successively from the muddy red or brown of silt through varying shades of yellow and green finally to the blue of the deep sea. Such land, consisting as it does of finely divided matter, is usually very fertile. Soil erosion is a major problem in countries like India. It occurs when the top layer of the soil is washed away in successive steps by the action of water. It is mainly caused by sudden bursts of heavy rainfall, the slope of the land, removal of the natural protective coat of vegetation, the ruts along which water can flow rapidly, and the absence of any checks to prevent the flow of water. It can be checked using various preventive measures like the terracing ofland, the construction ofbunds (dams) to check the flow of water and the planting of appropriate types of vegetation.

                The conservation and utilisation of water is fundamental for human welfare. Much oflndian agriculture depends on seasonal rainfall and is therefore very sensitive to any failure or irregularity of the same. The problems of soil erosion and of inadequate (not enough) or irregular rainfall are closely connected with each other. It is clear that the adoption of techniques preventing soil erosion would also help to conserve and keep the water where it is wanted. In India an immense quantity of rain water runs off the ground. The collection and utilisation of this water is important. Much ofit finds its way to the sea. Incredibly large quantities of the precious fluid are thus lost to the country. The harnessing of our rivers, the waters of which now mostly run to waste, is need of the hour. Vast areas ofland which at present are mere scrub jungle could be turned into fertile and prosperous land by

courageous and well-planned action. Closely connected with the conservation of water supplies is the

problem of afforestation. The systematic planting of suitable trees in every possible or even in impossible areas is one of the most urgent needs oflndia. Such plantation would directly and indirectly prove a source of hidden wealth to the country. They would check soil erosion, conserve the rainfall of the country from flowing away to waste and it will also supply cheap fuel.