Term
| About What percentage of earth's water is available as fresh water? |
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Definition
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Term
| How do most rivers and lakes maintain their water level? |
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Definition
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Term
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Definition
| water that infitrated from surface sources; sutiable for consumption |
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Term
| In regards to rocks and soils, compare pore space with Porosity? |
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Definition
| Pore space is the space that is not occupied by matter; porosity is the amount of space |
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Term
| What is the difference between permeability and porosity? |
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Definition
| Permability is the capacity and ability to transmit water; |
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Term
| Describe the volume of groundwater associated with very large underground rivers and lakes? |
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Definition
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Term
| Are there large areas of land on Earth that have no ground water? |
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Definition
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Term
| At what depth is most usable groundwater found? |
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Definition
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Term
| How does a perched aquifer differ from an unconfined aquifer? (reference extent of aquitard) |
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Definition
| Perched is smaller it is above the main aquifer |
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Term
| What types of sediments and rocks make the best aquifers? |
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Definition
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Term
| what type of rocks and sediments make the best aquitards? |
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Definition
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Term
| what is the potential problem with the high plains (ogallala) Aquifer of the Texas panhandle? n Y |
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Definition
| it is running out of water because most of its recharge zone is covered by clays |
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Term
| Describe the water qualities of the Goliad formation near Sinton? |
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Definition
| good water and preamability but privetly owned |
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Term
| What is "hard water" and what effect does this have on hot water heaters and pipes? |
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Definition
| water with dissolved calcite which can fill the pipes and heaters up with coatings of calcite |
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Term
| What are some of the major contaminants of local area aquifers? |
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Definition
| Arsenic, Uranium and Selenium |
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Term
| Why would a town use more expensive water from a desalinaition plant? |
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Definition
| it is a back up so they wont run out of water and when they need water |
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Term
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Definition
| to dissolve and remove the soluble constituents of a rock or soil or trash or anything |
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Term
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Definition
| A water solution produced by leaching that can enter an aquifer |
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Term
| what is the cause of major ground subsidence around houston? |
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Definition
| Drilling more water thant water can get in |
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Term
| What is the host rock for most caves? |
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Definition
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Term
| What are stalacites and Stalagmites |
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Definition
| Stalacites are the ones hanging from roof and stalagmites are the ones on the floor |
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Term
| When do sinkholes develop? |
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Definition
| when the roof of a cavern caves or depresses in |
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Term
| Describe required rainfall amounts needed for karst topography? |
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Definition
| alot of rain and sinkholes |
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Term
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Definition
| A Thermal spring that intermittently erupts steam and boiling water. |
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