Water that falls from the sky into the Earth's surface to be quarantined as the water in the river. Canals. Lake and ocean water is such a slug. Called surface water. Surface water will flow into the underground becomes groundwater, which is water in soil and groundwater. That is, the surface water to flow into the first section of the underground will ooze along the space between soil. Called the water in the soil (soil water) in the dry season, water in the soil may have sunburn, dry to evaporate. The water remaining in the soil will ooze down further. The last to go was the retention by the spaces between the sediment, or as a crack and crevice of the stones address. The stone floor. Sludge layer or layers of gravel until sedimentary rocks. Sedimentary layers, or a layer of gravel is saturated with such water, or a particular gap is filled with packing. The water is saturated in water retention is also called ground water (ground water) in the top level of the groundwater to underground water level (the water table), which is the surface or subsurface water levels between the air saturated with water saturated zone (areas where there are air) at water level.This soil, water pressure in the rock layer, or in the sediment layer is equal to the pressure of the atmosphere and in a place where deep into the underground water level. Water pressure is increasing due to the weight of the water at the press. Underground water levels will change up and down season. In the dry season, the water level underground is deeper than normal levels. The underground water level is mostly tilted to pour or paste consistency according to the type of terrain and are going to meet, the water level in the river or Lake.
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