22 Questions
What percentage of the hydrosphere does groundwater represent?
0.6%
How is groundwater resupplied?
By slow infiltration of precipitation (recharge)
What is the main method of accessing groundwater?
Extracting from underground aquifers
What determines the magnitude of porosity in groundwater?
Particle size and arrangement
What is groundwater?
Water that fills pores in sediments and sedimentary rocks as well as fractures in other rock types
What is the primary method of recharging groundwater?
Infiltration of precipitation
What percentage of the hydrosphere does groundwater represent?
0.6%
What is an aquifer?
An underground layer of water-bearing rock
What causes groundwater to move?
Gravitational forces
What is salt-water intrusion related to in the context of groundwater?
Infiltration of sea water through rocks into freshwater aquifers
What is the primary method of accessing groundwater?
Drilling wells
What is the primary cause of movement for groundwater?
Gravity
In the context of groundwater, what does porosity refer to?
The size of water-bearing openings in the ground
What is the primary method of recharging groundwater?
Infiltration of precipitation
What percentage of the hydrosphere does groundwater represent?
0.6%
What is salt-water intrusion related to in the context of groundwater?
Over-pumping of groundwater causing saltwater to intrude into aquifers
What is the primary method of recharging groundwater?
Infiltration of surface water
What is an unconfined aquifer?
An aquifer with a layer of impermeable rock above it
What causes groundwater to move?
Infiltration and percolation
What is porosity in the context of groundwater?
The ability of the material to transmit water
What percentage of the hydrosphere does groundwater represent?
0.6%
What is salt-water intrusion related to in the context of groundwater?
The movement of saltwater into freshwater aquifers
Explore the fundamental concepts of groundwater, including infiltration, percolation, aquifer zones, and salt-water intrusion. This lecture covers topics that will be assessed in Test 2, PBL, and the Final Exam.
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