ground water 1
What is the most important source of freshwater?
What is the most important source of freshwater? Ground water
Small pores mean (high or low) porosity.
Low porosity
What is the zone of aeration?
Part of an aquifer; pores partially filled with and rest is air
Low permeability means (fast or slow) groundwater?
Slow permeability
What is groundwater?
Water containing in the open space or pores of soil and rock
What is permeability?
Ability of rock and soil to transmit water and other fluids
What is the zone of saturation?
Zones are filled with water
What are springs?
Where the water table meets the earth's surface
What is the difference between loose and tight porosity?
Large pores high porosity ; small pores low porosity
What does impermeable mean?
Impermeable shale and granite have few pores that are connected so ground water cannot pass through.
Where is the water table?
Upper part of the zone of saturation
What are wells? Where does the hole need to be drilled into?
Wells must be drilled if springs do not occur; The hole must be drilled in the zone of saturation.
What is porosity?
Volume of pore space divided by the volume of a rock or soil sample
What natural occurrences let water to seep into the rock & soil?
Permeable
What are the layers underground, starting with zone of aeration?
Zone of aeration, water table, zone of saturation
Explain an artesian well. (think of the example I used in class of grapes & textbooks)
drilled into pressurized aquifers; Pressure depends on elevation difference between highest part of aquifer and the well; Requires pumping
Large pores mean (high or low) porosity.
High porosity
What is an aquifer?
Layer of permeable rock through which water flows freely
High permeability means (fast or slow) groundwater? (think of crowds getting out of a doorway)
fast permeability
What is a geyser?
Hot fountain that erupts periodically shooting water and stem into the air