A road filling with 100% relative compaction will be made. The final volume of this filling in 100% compressed state will be 15.000 m3, maximum dry unit weight of 2 t / m3 and optimum water content of 0.15. For this road fill, the water content of the land is 0.14. a- How many tons of ground should be transported from the land for road filling? b- How much water is needed for 100% compression?

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A: The scenario after the water table gone down is as follows:

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Basic Concepts of Water Resource Sustainability

The majority of the earth's surface is composed of water. The water which is available for use by the living beings on earth comes from various water resources. Water resources are the naturally occurring water bodies that are intended to be used by the living beings on earth for drinking and other uses. Water resources provide 3% as freshwater, 97% as saltwater, two-thirds of which are frozen as glaciers and ices. The remaining water which generally doesn't remain frozen are the water resources found underground, precisely known as groundwater. The majority of these water sources act as non-convention sources of power generation, like in hydropower stations.