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2010-10-19 02:00:40
2010-10-19 02:00:40
Disadvantages:
  • Surface mining is very dangerous.

Advantages:

  • Subsurface mining is safer
  • Subsurface mining is cheaper,
  • Subsurface mining is faster
60% of the mining in the US is Subsurface mining.
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Surface mining is safer and easier than subsurface mining.Surface mining does more damage to the environment than subsurface.Surface mining creates more of a mess then subsurface or open cut mining.ON TH OTHER HAND-Subsurface mining is very dangerous.Subsurface mining allows you to retreive minerals from underground.Subsurface mining requires you to go underground, where you will have very little air.


Subsurface mining, is the extraction of ores and minerals, which lie underground.


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i don't know the types of subsurface mining, but i know some facts.surface mining is safer and easier than subsurface mining.You don't have much air underground.It has no or very little advantages compared to surface mining.


Surface Miningeasier than subsurface miningdoes more damage to environmentcreates more of a messSubsurface Miningit is very dangerousyou retrieve minerals from undergroundyou have very little air underground


Subsurface mining is less disruptive to the environment that strip mining, however the danger to the miners is greater


The types of mining are shaft mining, strip mining, surface mining, and subsurface mining.



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Mining techniques can be divided into two common excavation types: surface mining (above ground) and subsurface (underground) mining. sometimes subsurface mining is also called deep mining like in my text book p.s i am in 8th grade




some benefits are you can keep gear and some drawbacks is its dangerous



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the positive side of the 'mining' is that it is cheap but the negatives to it are its dangerous, time consuming and back breaking work



Surface mining is used where the ore or material to be extracted is located fairly close to the surface. The overlying ground cover is removed, the material is mined, and the ground cover is ordinarily replaced. Subsurface mining is used where the material is in veins deep beneath the surface, or obstructed (by rock layers, water tables, or other strata) in a way that make surface access impractical. Early mines used existing caves, but technology has brought increasingly deep and complex drilling to reach veins of coal or metal ores.Surface MiningSafer and easier than subsurface mining.Does more damage to the surface ecosystems than subsurfaceCreates more of a mess than subsurface or open cut mining.Subsurface MiningNot as much widespread damage to ecosystemsDifficult and expensive to digVery dangerous conditions can include collapses, released gases, particulates in the air, low oxygen, and heat


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Three kinds of tunnels used in subsuface mining are... Horizontal tunnels,tunnels dug at a certain angle, and vertical tunnels.


It gives benefits to the mines owner and the government.



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