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X Land and Soil

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Less than 30 percent of the area on this planet is covered by land, all are familiar with the fact that more than 70 percent of our earth is covered by water. but how much of this earth is covered by soil. before it is estimated, it is pertinent to differentiate between land and soil Earth has a three-layer structure - crust, mantle, and core, the upper layer is known as the crust. the crust is further divided into the continental and oceanic crust, the solid part (crust without water) of the continental crust is known as land. the solid crust has all physical features -like mountains, plateau, plains, islands, etc these are the part of the land, and the loose grainy layer on the land(uppermost layer)  is known as the soil. Land is a very important resource It supports natural vegetation, wildlife, human life, economic activities, transport, and communication systems. many human activities such as deforestation, overgrazing, mining, and quarrying have contributed to land degra...