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English, 28.02.2020 04:21 bluenblonderw

One advantage that open pit mines have over shaft mines is that they are less dangerous because there are no trapped gasses to worry about.
True

False
A mineral never has certain elements in the same proportions
True

False

Yosemite Sam was a prospector in Warner Brothers cartoons.
True

False
The chemical composition and crystal structure of a mineral gives it unique characteristics.
True

False

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