1
Agriculture 41%
Iron changes water color to..
a reddish brown
What type of cave formation is on the ground?
What kind of bedrock do caves form in?
Staglamites
Limestone Bedrock
What happens to the ground when an aquifer doesn't refill?
It shrinks or it in cases with heavy water withdraw can form sinkholes.
Which rock does water dissolve most easily?
Limestone
What is a cone of depression
A cone of depression occurs in an aquifer when groundwater is pumped from a well. In an unconfined aquifer (water table), this is an actual depression of the water levels. In confined aquifers (artesian), the cone of depression is a reduction in the pressure head surrounding the pumped well.
Define porosity
The percentage of pore space in material
What does Radon do to human body?
Lung Cancer (breathe)
and Stomach Cancer (drink)
Nothing, does not have a color or odor
What is a hydrosphere?
What percentage if hydrosphere is in oceans?
The water on and in Earth's crust
97%
How does precipitation become groundwater?
Through the process of infilitration
What is a common problem with drilling wells in coastal areas?
They get contaminated by sea water.
Beneath the water table where is the groundwater stored?
in Aquifers.
What is zone of saturation
Zone where all open spaces in sediment and rock are completely filled with water
What is the difference between hard water and soft water?
Hard water has high concentrations of iron, Mg, and Ca
What is the difference in the original water table and water level in a pumped well called?
Drawdown
Which of the following is the most permeable?
Which is the least permeable?
shale
clay
gravel
nonporous rock
Sand and gravel are highly permeable. Clays and soils with mixed particle sizes have low permeability.
What is the groundwater flow?
Groundwater flows from recharge areas to discharge areas.
-Flow follows the hydrologic gradient(high pressure to low pressure)
What happens to radon in surface water?
Most radon will be released into the air
What is karst topography
A region in which a layer of limestone close to the surface creates deep valleys, caverns and sinkholes.
what is hydraulic gradient
slope of a water table
How is radon formed and how does it enter ones home
Radon comes from from the natural breakdown of uranium in soil, rock, and water. It then enters the house hold. It enters through the water supply, cracks in solid floors, cracks in walls, and gaps around service pipes.
In a sloped arid region, a sudden storm has arrived. It has been raining for the past few days. How and where would the water table be located and what is its topography?
10s-100s of meters below the ground.
Topography follows the surfaces of topography.
What is the difference between a hot spring and a geyser?
Hot springs are springs that have higher temperatures than the human body. Geysers are explosive hot springs that erupt at regular intervals
What are impermeable layers called
Aquicludes