Earth

How Are Mountains Formed?

Mountains are some of the most impressive natural structures on earth. Yet how are these massive ridges in the Earth’s crust formed? The process that…
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Intertidal Zone

The intertidal zone is the zone between the high tide and low tide, also referred to as the foreshore, seashore, or littoral zone. The intertidal…
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What Is Black Tourmaline?

Black tourmaline is a particular variant of tourmaline, a crystalline borosilicate mineral. It is thought that the particular hue of black tourmaline is due to…
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