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MINING OF ROCKS AND MINERALS

Teacher: Mr. Prussman
Across
A large rotating machine that is used in longwall mining and moves back and forth across the face of a coal seam is a_________. (446)
Building stones such as granite and marble are mined in open pits called _________. (447)
Type of mining that goes 50 meters or more beneath the earth's surface is _______mining. (446)
________and metals such as copper are mined in large quantities using Open-pit Mining.(447)
Down
The _____decision was the first environmental decision which ruled against mining companies in 1884. (449)
_________mining proved to be an environmental disaster. (449)
Type of mining in which deposits are located close to earth's surface is ______ mining. (447)
Type of deposits where streams transport mineral grains and deposit them when the stream slows down are called ______deposits. ( 449)
Placer gold, diamonds and other minerals are mined by _______. (449)
A type of mining in which hot water is injected into ore deposits underground to dissolve the mineral ores is called_______ mining. (446)