Physical Geology: Chapter 17 question n answers graded A+ 2023/2024

Physical Geology: Chapter 17 A perched water table develops when - correct answer a horizontal aquitard above the regional water table lies below an aquifer After ice sheets and glaciers, ________ contain(s) the next highest percentage of the Earth's freshwater. - correct answer groundwater An aquifer is ________. - correct answer A saturated, porous, and permeable layer or stratum An artesian well is one in which ________. - correct answer water rises above the top of the aquifer without any pumping An unconfined water table is the ________. - correct answer boundary between the aerated zone above and saturated zone below Excessive groundwater withdrawals can cause ________. - correct answer the water table to drop or decline in elevation How would hazardous substances behave that accidentally entered a groundwater system? - correct answer gasoline and kerosene would float on the water table; ethyl alcohol would dissolve and disperse in the groundwater the hot spring deposits at Mammoth Hot Springs, Yellowstone National Park, are travertine. What rock probably lies somewhere beneath the hot springs? - correct answer limestone the unsaturated zone ________. - correct answer lies above the water table the water table is ______ - correct answer a boundary between saturated rock below and unsaturated rock above What force pushes groundwater from pore to pore below the water table? - correct answer pressure gradient or hydraulic gradient what is the relationship between drawdown and the cone of depression associated with a pumping well - correct answer drawdown is the distance between the original water table and water level in the well where are the most extensive geothermal features in the world - correct answer yellowstone national park, US which common, rock forming mineral or mineral group is most readily dissolved by groundwater - correct answer calcite which of the following best describes how geysers erupt - correct answer with a slight reduction in pressure water in a saturated natural conduit suddenly boils sending a plume of stream and hot water into the air above the vent. which of the following can logically be concluded by speleothems/dripstone hanging from a cave roof? - correct answer the cave roof was above the water table when the speleothems formed which of the following describes the configuration of an unconfined water table around a pumping well - correct answer cone of depression which one of the following concerning artesian wells is not true - correct answer when the well penetrates the aquifer the water rises to the bottom of the aquitard above the aquifer ________ account for the largest usage of groundwater in the United States - correct answer agriculture and irrigation _______ are characteristics found in all good aquifers - correct answer high porosity and high permeability _____ are specific features of karst topography - correct answer streams flowing into depressions and continuing underground