Groundwater
An aquifer is...
A satutrated, porous, and permeable layer or stratum
............. accounts for the largest usage of groundwater in the United States
Agriculture and Irrigation
Which of the following statements is TRUE concerning unconfined aquifers in urbanized coastal areas
Any salty water in the aquifer will rise if the water table is lowered by pumping
Whast is the relatiopnship between drawdown and the cone of depression nassociated with a pumping well
Drawdown is the distancde between the original water table and the water level in the well
which one of the following is NOT a speleothem
Geyserite
...... are characteristics found in all good aquifers
High porosity and high permeability
..... is a coefficient that takes into account tyhe viscosity of the fluid and the permeability of the aquifer
Hydraulic conductivity
which of the following areas is underlainh by karst topography
Kentucky
.... controls the ease of groundwater transmission through a porous material
Permeability
........ is another name for the zone of saturation
Phreatic zone
is the volume of voids or open space in a rock or unconsolidated material.
Porosity
would have the largest capacity to unnaturally remove sewage pollutants
Slightly clayey sand
.... occur where the water table intersects Earths surface and natural outflow of groundwater occurs
Springs
Which one of the following concerning stalactites and stalagmites is NOT true
Stalagmites form on the floors of caves below the water table
...... are specific features of karst topography
Streams flowing into depressions and continuing underground
which one of the following statements is TRUE for an artesian aquifer
TYhe water table in the recharge area is at a higher eluviation that the top of the aquifer in the subsurface
Which one of the following can logically be concluded by speleothems/ dripstone hanging from a cave roof
The cave roof was above the water table when the speeothems formed
Which of the following concerning artesians is NOT true
When the well penetrates the aquifer, the water rises to the bottom of the aquitard above the aquifer
Which of the following best describes how geysers erupt
With a slightb reduction in pressure, water in a saturated, natural conduit suddenly boils, sending a p;lume of hot steam and hot water into the air above the vent
Where are the most extensive geothermal features in the world
Yellowstone National Park, United states
The water table is
a boundry between saturated rock below and unsaturated rock above
A perched water table developes when ....
a horizontal aquitard above the regional water table lies below an aquifer
highly impermeable layersa such as compacted clay or shale are known as ......
aquitards
Wghat term describese a groundwater system in which water in a well rises above the top of the aquifer without use of a pump
artesian
Which common roch forming mineral or mineral group isn most readily dissolved by groundwater
calcite
Lowering of the water table around a pumping well results in a
cone of depression
Darcys law allows for the calculation of .....
discharge
Which example best demonstrates groundwaters power as an erosional agent
dissolution of limestone leading to sinkholes and caverns
depositional features created by dripping of water over great spansd opf time are cdalled ....
dripstone
What term describes a stream which recieves water through the inflow of groundwater through the stream bed
gaining stream
a hydrothermal vent that periodically or occassionally erupts a column of steam and hot water is called
geyser
After Ice sheets and glaciers,............ contains the next highest percentage of Earths freshwatwer
groundwater
The water table slope is known as the ....
hydraulic conductivity
The unstaurated zone
lies above the water table
the hot spring deposits at Momoth Hot Springs, Yellowstone National Park, are travertine. What rock probably lies somewhere beneath the hot springs
limestone
Which of the following geological materials would have the highest groundwater velocities nand be the least effective in removing unwanted pollutants from the water
limestone; numerous solution channels and fractures widened by dissolution
Water staurated muds have low ....... but can have greater.... than well cemented sandstone
permeability; porosity
What term denotes the percentage of open space or voids in a material
porosity
What force pushes groundwater from pore to pore below the water table?
pressure gradient or hydraulic gradient
a network of recharge wells can help correct the problem of ...
saltwater intrusion
A ...... is the icicle like speleothem that growsd down from the roof of a cavern
stalactite
A stream is said to be losing stream when ....
the channel bottom is above the local water table
The term KARST TOPOGRAPHY was first used in ....
the republic of Slovenia, a province of the former Yugoslavia
Excessive groundwater withdrawels can cause....
the water table drops or declines in eluviation
Which of the following is responsible for the most daily indoor per capita water use in an average single family home in america
toilets
Karst developement occurs more rapidly in ...... climates
tropical
An artesian well is one in which ________.
water rises above the top of the aquifer without any pumping
The near surface zone that contains some of the water that soaks into the ground is called the
zone of soil moisture