Most coal mining in Appalachia is now done by surface mining, with some of it being done by "mountaintop removal" or "mountain-topping." Which is NOT true regarding this type of mining? Group of answer choices it is highly controversial because of the ecological impacts it requires more workers because so many different machines do the work it is safer than the older-style shaft mining because there is no risk of getting "black lung" it is highly controversial because of the aesthetic impacts it is safer than the older-style shaft mining because there is no risk of cave-ins