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Shallow coal deposits in the US and other countries are often removed by surface mining, also known as strip mining. The soil atop the seam is removed, then replaced after the coal has been removed. This can be very disruptive to the local ecology.
In India and other countries, open pit or "open cast" mines may be used to mine deep deposits that are accessible from the surface. This process is widely used for metal ores worldwide. However, the traditional process for deep subterranean coal seams is to create vertical shaft mines that do not remove the surface burden.
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Why are coal known as fossil fuel?
Coal is formed over millions of years by pressure and heat on decomposed vegetation accumulated in shallow swamps, the result is a sedimentary carbonaceous rock known as coal...
What is free moisture?
free moisture is defined as moisture which is not absorbed by the coal and can be removed by simply drying the coal in air.
How was coal mined?
If shallow then it is mined using a "strip" mining technique. If it is deep then it is mined in deep mine collieries.
How is sulfur dioxide removed from coal in power station emissions?
they clean the coal as it passes through with machines called 'scrubbers'
How is coal created and where does coal it come from?
coal is created by the deposition and compaction of huge plant(organic) material deposited into a basin,with the increasing depth the high rank of coal is formed. The order is:- peat>lignite>bituminous>anthracite Peat is formed at shallow depth and on moving downward anthracite is formed at greater depth.
How coal is removed from deep under ground?
deep mining is how coal removed
How coal is removed from deep under the ground?
deep mining is how coal removed
How was coal removed from the earth?
The miners would dig a hole and put any mining tools they needed to get the coal out. but no not all the coal was removed.
How does coal get removed from he ground?
Digging
How did child labor improve in coal mines?
Children were removed from the coal mines.
What is the method used to extract shallow deposits of coal from the earth?
They use mommies and daddies to make babies and the babies become coal miners
What word is if you unscramble the letters crove?
There are two possibilities:Corve (shallow wooden box on runners like a sled used for hauling coal out of shallow mines)Cover
Why are coal known as fossil fuel?
Coal is formed over millions of years by pressure and heat on decomposed vegetation accumulated in shallow swamps, the result is a sedimentary carbonaceous rock known as coal...
How is coal removed from the groud?
Coal is removed by miner because the take big machines into the mines and drill into the mines to get to the coal!*By Beth Logan age 10 Paisley school RD PA1 3AU Coal is removed by miners because the take big machines into the mines and drill into the mines to get to the coal!*By Beth Logan age 10 Paisley school RD PA1 3AU
How is salt removed from rock or coal?
By washing with water
What is the big gap that coal is from?
Coal is not from any "big gap" . It is a solid part of the subterranean strata. In fact a big gap is left when coal is removed.
When coal is removed in strips it is called?
it is called surface mining
