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Question | Answer |
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hydrosphere | all the water on earth including groundwater, running water, lakes and oceans. |
water cycle | the hydro logic cycle. |
transpiration | when plants release water through their leaves |
evapotranspiration | loss of moisture as water vapor from the ground or from plant leaves |
water budget | describes the income and outgo of water for region. The income is rain or snow and the outgo includes water lost by use, runoff, and transpiration |
recharge | the refilling of soil water supply at times when plans need little moisture |
surplus | occurs when rainfall is greater than the need for moisture & the soil water storage is filled |
usage | when plants draw water from soil when the need for moisture is greater than the rainfall |
deficit | occurs when the need for moisture is greater than the rainfall & soil water storage is gone |
porosity | the percentage of materials is pore space, depends on the factors such as shape, size, and sorting. |
permeability | rate at which water or other fluids pass through the pore spaces of a rock |
impermeable | material water cannot pass through |
water table | the surface of the zone of saturation |
zone of saturation | the part of the ground where all pore spaces are filled |
zone of aeration | surface about water table which contains air and water |
capillary fringe | water rises from the water table by capillary fringe |
capillary water | water that passes through a sediment or rock which sticks to the particles. an example is sand. |
what factors does the depth of water table depend on | includes amount of rainfall, soil thickness, climate, and time between rains |
ordinary well | contains water from its bottom up to the level of the water table |
hillside spring | where the water table meets the surface and the ground water flows out |
artesian formation | the arrangement of a permeable layer of rock (aquifer) sandwiched between two layers of permeable rock |
aquifer | the permeable layer, usually gravel or sandstone. |