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Question
Match the following.A) in situ recovery
B) strip mining
C) smelting
D) subsurface
E) manganese
F) tailings
G) gangue
H) iron
I) platinum
J) open-pit
K) refining
L) iridium
1.The type of mining most dangerous to its workers
2.Heating ore beyond its melting point and combining it with other metals or chemicals
3.Large amounts of this metal are in small ball-shaped accretions that are scattered across parts of the ocean floor
4.The most economical method of extraction of minerals occurring in shallow horizontal deposits near the surface
5.Remnants that are left over after metals have been extracted from ores
6.Metal used in a car's catalytic converter
Answer
This answer is hidden. It contains 18 characters.
Related questions
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