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Title: Unlike most non-metallic resources, most metals are found in a pure state in Earth's crust. Post by: Jose7up on Dec 6, 2017 Unlike most non-metallic resources, most metals are found in a pure state in Earth's crust.
Title: Re: Unlike most non-metallic resources, most metals are found in a pure state in Earth's crust. Post by: illustrasyon on Dec 6, 2017 Content hidden
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