Metals and the Environment (Resources)

Inhaltsangabe

Looks at how metals are made from the Earth's minerals, the many different ways metals are used, and how the environment is affected by the extraction and refining of metals and their nonbiodegradable end-products. Metals are used to build a multitude of things, from cars and electric cables to bicycles, bridges, and jewelry. Metals are one of our most important resources.

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