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Q: What is the difference between confined and unconfined aquifers?
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What is the difference between a confined aquifer and unconfined aquifer?

Confined acquifer:An aquifer which is sandwiched between two layers of less permeavle material is called confined aquifer.Unconfined acquifer:Aquifers having water table in it is called unconfined aquifer.


What is the difference between a dammed lake and a aquifer?

dammed lakes are lakes and aquifers are aquifers


What is the difference between shallow well and deep well?

The common misconception is that the difference between a shallow well and a deep well is the depth to which you dig to hit water. While this may be true in some cases, this isn't the basis of classification. A shallow well is one where the primary source of water is an unconfined aquifer and a deep well is one which is fueled by a confined aquifer.


Different between cube and cylinder in concrete compressive test?

The difference in compressive strength is due to the difference between the modulus of elasticity of concrete and that of the steel which is used to apply the compressive force on the concrete. The pressure applies a lateral confinement pressure which is equal to d/3 meaning that for the cylinder, 2d/3 is confined leaving d/3 unconfined whereas for the cylinder 2d/3 is confined means all of the cube is confined. This leads to the cube having a higher compressive strength that the cylinder. For more information, try to read about the triaxial test and the effect of confinement on the compressive strength of soil samples.


Diffrence between chebyshev and inverse chebyshev apprroximation?

The difference between chebyshev and inverse chebyshev apprroximation is that the ripple of the Inverse Chebyshev filter is confined to the stop-band.


What is the difference between groundwater and aquifers?

Groundwater is any water present below the earth's surface. An aquifer is a porous and permeable zone in a rock or soil through which ground water flows.


What type of rock is groundwater found in?

Usable groundwater is to be found in aquifers. Aquifers are porous, permeable rocks sandwiched between two layers if impermeable rocks. Sandstones and porous limestones can form good aquifers.


What is the difference between Google search and computer hardisk search?

Google searches the web, while a hard disk search searches a confined space(your hard disk)


What is the difference between precipitation and ground water?

Precipitation is rain (or snow etc) falling from the clouds. When it lands it becomes surface water in rivers, lakes and oceans. If it seeps into the earth it becomes groundwater, usually in aquifers.


How do sientists classify soil?

The US Occupational Safety and Health Administration (OSHA) uses 5 soil classifications: Stable Rock Type A - cohesive, plastic soils with unconfined compressive strength greater than 1.5 ton/sf Type B - cohesive soils with unconfined compressive strength between 0.5 and 1.5 ton/sf Type C - granular or cohesive soils with unconfined compressive strength less than 0.5 ton.sf Type C60


What is the difference between an aircraft and a spacecraft?

Aircraft fly through air and spacecraft fly in space.


What is the difference between an accident and a disaster?

Accident is one which occurs in a particular area and confined to the limits whereas disaster is an accident spreading to neighbouring areas and usually occurs in largescale.