mining Flashcards
1
Q
types of mining
A
*open pit mining
*deep-level mining
2
Q
open-pit mining
A
*simplest + cheapest
*ore must be near surface to dig up
*e.g. Kimberly diamond mine, Phalaborwa copper mine
3
Q
deep-level mining
A
*ore is deep below surface
*tunnels leading down must be built(shaft)
*horizontal tunnels lead outwards from shafts
4
Q
environmental impact of mining
A
*destruction of habitats/farm land
*air pollution
*noise pollution
*water pollution
*acid rain
*heavy metals seep into ground water
*devalue popular tourist locations
5
Q
minerals
A
a natural solid with specific chemical composition occurring as a crystal
6
Q
ore
A
A
most metals bonded in rock to oxygen,sulfur,silicon
