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Geology Test 2 Study Guide
Questions and Answers (100%
Correct Answers) Already Graded A+
Porosity Ans: Measure of void spaces in materials.
© 2026 Assignment
Permeability Ans: Measure of a material's ability to allow fluids
to pass through.
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Expert
Darcy's Law Ans: Equation: Q=KA(Δh/Δl), where Q is
discharge, K is hydraulic conductivity, A is cross-sectional
area, Δh is change in hydraulic head, and Δl is length.
Variables in Darcy's Law Ans: Includes discharge (Q), hydraulic
conductivity (K), cross-sectional area (A), change in hydraulic
head (Δh), and length (Δl).
How Measured (Darcy's Law) Ans: By calculating water flow
rate through a material concerning hydraulic head and cross-
sectional area.
Purpose of Darcy's Law Ans: Describes groundwater flow; used
to estimate water movement in aquifers.
Water Table Ans: The level below which the ground is
saturated with water.
Location of Water Table Ans: Between unsaturated and
saturated zones; fluctuates with seasonal and topographic
changes.
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Behavior of Water Table Ans: Can rise or fall based on
precipitation, usage, and topography.
Aquifer Ans: An underground layer of water-bearing rock or
sediment that stores groundwater.
Aquitard Ans: An impermeable layer restricting groundwater
flow, often separating aquifers.
Springs Ans: Natural discharge points where the water table
© 2026 Assignment
meets the surface, releasing groundwater.
Cone of Depression Ans: A depression in the water table
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around a well due to heavy pumping, causing a localized drop.
Expert
Subsidence Ans: The sinking of the ground surface due to
excessive groundwater extraction, which reduces pore space.
Saltwater Incursion Ans: Saltwater intruding into freshwater
aquifers, often due to over-pumping in coastal areas.
Karst Ans: A landscape formed by the dissolution of
limestone, creating caves, sinkholes, and springs.
Speleothem Ans: Mineral deposits in caves, such as stalactites
(from the ceiling) and stalagmites (from the floor).
Cave Formation Ans: Primarily formed by limestone
dissolution from carbonic acid in groundwater.
Mechanical Weathering Ans: Physical breakdown of rocks
through various processes.
Wedging Ans: Physical breakdown by expanding forces (e.g.,
root growth, ice wedging).
Geology Test 2 Study Guide
Questions and Answers (100%
Correct Answers) Already Graded A+
Porosity Ans: Measure of void spaces in materials.
© 2026 Assignment
Permeability Ans: Measure of a material's ability to allow fluids
to pass through.
Guru01 - Stuvia
Expert
Darcy's Law Ans: Equation: Q=KA(Δh/Δl), where Q is
discharge, K is hydraulic conductivity, A is cross-sectional
area, Δh is change in hydraulic head, and Δl is length.
Variables in Darcy's Law Ans: Includes discharge (Q), hydraulic
conductivity (K), cross-sectional area (A), change in hydraulic
head (Δh), and length (Δl).
How Measured (Darcy's Law) Ans: By calculating water flow
rate through a material concerning hydraulic head and cross-
sectional area.
Purpose of Darcy's Law Ans: Describes groundwater flow; used
to estimate water movement in aquifers.
Water Table Ans: The level below which the ground is
saturated with water.
Location of Water Table Ans: Between unsaturated and
saturated zones; fluctuates with seasonal and topographic
changes.
, 2
Behavior of Water Table Ans: Can rise or fall based on
precipitation, usage, and topography.
Aquifer Ans: An underground layer of water-bearing rock or
sediment that stores groundwater.
Aquitard Ans: An impermeable layer restricting groundwater
flow, often separating aquifers.
Springs Ans: Natural discharge points where the water table
© 2026 Assignment
meets the surface, releasing groundwater.
Cone of Depression Ans: A depression in the water table
Guru01 - Stuvia
around a well due to heavy pumping, causing a localized drop.
Expert
Subsidence Ans: The sinking of the ground surface due to
excessive groundwater extraction, which reduces pore space.
Saltwater Incursion Ans: Saltwater intruding into freshwater
aquifers, often due to over-pumping in coastal areas.
Karst Ans: A landscape formed by the dissolution of
limestone, creating caves, sinkholes, and springs.
Speleothem Ans: Mineral deposits in caves, such as stalactites
(from the ceiling) and stalagmites (from the floor).
Cave Formation Ans: Primarily formed by limestone
dissolution from carbonic acid in groundwater.
Mechanical Weathering Ans: Physical breakdown of rocks
through various processes.
Wedging Ans: Physical breakdown by expanding forces (e.g.,
root growth, ice wedging).
