The amount of water by weight in the soil. Water content is found by dividing the weight of water in the soil by the weight of dry soil.
A fluctuating demarcation line between the unsaturated (vadose) zone and the saturated (phreatic) zone that forms an aquifer. It may rise or fall depending on precipitation (rainfall) trends. The water table is semiparallel to the land surface above but is not always a consistent straight line. Because of impervious beds of shale, etc., local water tables can be perched above the area's average water table.
Physical and chemical processes that disintegrate bedrock and form soil.