Fracking

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Fracking is a way of squeezing yet more fossil fuels from deep underground in rock.
The term fracking refers to how shale rock is apart by a high mixture of water, sand and chemicals.
Fracking is the process of down into the earth before a high-pressure water mixture is directed at the rock to release the inside.
The water, sand and chemicals are injected into the rock at high pressure which allows the gas to out to the head of the well.
The process can be carried out vertically or, more commonly, by drilling to the rock layer and can create new pathways to release gas.