A mining process in which rock is stripped away to expose mineral deposits near the surface

A concentration of mineral fragments at the bottom of a stream or river bed is a

mineral deposit from which metals and nonmetals can be removed profitably

rare nonmetallic mineral valued for its brilliance and color

mineral deposit made up of many thick mineral veins in a rock formation

The most abundant fossil fuel in the world is

natural resource formed from the remains of living things

unrefined petroleum is

in a passive solar energy system, energy is collected by

in an active solar collecting system, energy is collected by

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