Seawater is denser than fresh water; therefore, fresh groundwater floats on top of salty groundwater.
Fresh water is denser than seawater; therefore, fresh groundwater floats on top of salty groundwater.
Seawater is denser than fresh water; therefore, salty groundwater floats on top of fresh groundwater.
Fresh water is denser than seawater; therefore, salty groundwater floats on top of fresh groundwater.
None of the above
An alluvial fan
An aquifer with low hydraulic conductivity and a high hydraulic gradient
An aquifer with low hydraulic conductivity and a low hydraulic gradient
An aquifer with high hydraulic conductivity and a low hydraulic gradient
An aquifer with high hydraulic conductivity and a high hydraulic gradient
All of the above
Splitting of a rock along a fracture
Dissolution of calcite
Rusting of a nail
Breakdown of feldspar to form kaolinite
All of the above
Iron pyroxene (Fe2Si2O6)
Influx and outflow of water in an aquifer.
Elevation difference and the flow distance in an aquifer.
Porosity and permeability of an aquifer.
Permeability and elevation difference in an aquifer.
Temporarily or permanently suspended in the flow
Rolling along the bottom and suspended in the flow
Rolling along the bottom of the stream
Deposited on the bottom of the stream
Primarily in the A-horizon
Primarily in the B-horizon
Primarily in the C-horizon
In the A-, B-, and C-horizons in approximately equal amounts
The pore spaces in the saturated zone are full of water; the pore spaces in the unsaturated zone are not full of water.
The pore spaces in the saturated zone are not full of water; the pore spaces in the unsaturated zone are full of water.
The saturated zone has a lower porosity than the unsaturated zone.
The saturated zone has a higher porosity than the unsaturated zone.
Because clay particles are denser than sand particles, making them heavier
Because sand grains are rounder and roll more easily, whereas clay particles are flat and platy
Because clay particles are attracted to each other due to opposite charges, which hold them in place
Because sand grains are typically made of quartz, which saltates more easily than clay particles
Decreasing the temperature
Breaking the rock into smaller pieces
Increasing the amount of surrounding soil
Increasing the amount of acid in the rainwater