EARTH SCIENCE
GROUNDWATER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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higher amounts of precipitation in an area around the aquifer
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more people using water from the aquifer
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water restrictions on groundwater use near the aquifer
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an increase in the percolation of water above the aquifer
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Detailed explanation-1: -Increasing population: The higher the number of individuals, the higher the need for daily use, which will lead to a decrease in the groundwater.
Detailed explanation-2: -Stressors that can deplete aquifers include changes in precipitation and snowmelt patterns; withdrawal of ground water for drinking, irrigation, and other human uses; and impervious paved surfaces that prevent precipitation from recharging ground water. Some deep aquifers may take thousands of years to replenish.
Detailed explanation-3: -The amount of water an aquifer can hold depends on the volume of the underground rock materials and the size and number of pores and fractures that can fill with water.
Detailed explanation-4: -Topography and geology are the dominant factors controlling groundwater flow. Storativity describes the property of an aquifer to store water. Hydraulic conductivity is measured by performing a pumping test, i.e. by pumping one well and observing the changes in hydraulic head in neighboring wells.
Detailed explanation-5: -Fluctuations in the water table level are caused by changes in precipitation between seasons and years. During late winter and spring, when snow melts and precipitation is high, the water table rises. There is a lag, however, between when precipitation infiltrates the saturated zone and when the water table rises.