mining and fracking

1. the difference between surface and sub-surface mining is surface mining is safer and easier but sub-surface is difficult and expensive to dig.


2. Strip mining is a type of mining that involves exavating earth.

3. open pit mining is a surface mining technigue of extracting rock or minerals from earth

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4.mountaintop removal is a relatively new type of coal mining.


5. slope mining is a method of accending valuable geological material.


6. drift mining is near horizontal passage way in a mine.


7. shaft mining is a method of exavating a vertical or near vertical tunnel from the top down.


8. fracking is drilling down into the earth before a high pressuere water mixture is directed at the rock to mix gas.

it effects the atmosphere and soil.