Which Type Of Mine May Be Used To Remove Coal From A Coal Seam Deep Underground Brainly?

Which Type Of Mine May Be Used To Remove Coal From A Coal Seam Deep Underground Brainly? Open-pit mining is used when coal is located deeper underground. A pit, sometimes called a borrow, is dug in an area. This pit becomes the open-pit mine, sometimes called a quarry. Which technique is used to take out

How Many Miners Got Rich In The Gold Rush?

How Many Miners Got Rich In The Gold Rush? Prospectors working California gold placer deposits in 1850 Date January 24, 1848–1855 Location Sierra Nevada and Northern California goldfields Coordinates 38°48′01′′N 120°53′32′′WCoordinates: 38°48′01′′N 120°53′32′′W Participants300,000 prospectors Did anyone get rich in the gold rush? However, only a minority of miners made much money from the Californian