The most abundant elements in earth's crust are
A rock is a(an)___________ of minerals
Gold and silver are native elements (and minerals) that show
Shale is the parent rock of
Sedimentary rocks are made of ______ and are classifed by whether or not they are _____________ or ______________.
Igneous rocks are formed by
Metamorphic rocks are
Coal is an example of a
Granite is made of which minerals?
Metamorphic rock is classified based on its
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