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


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.