bjaneChk9eishah bjaneChk9eishah

19-05-2017
Biology

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Under which condition below would you expect a glassy extrusive rock like obsidian to form

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Frankeinstein Frankeinstein

26-05-2017

Obsidian is an extrusive rock that is formed when magma from underneath the Earth's crust breaches and becomes lava. Once the lava starts cooling, it solidifies and elements are frozen, giving the rock its glassy appearance.

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minecraftableco minecraftableco

01-06-2017

Quick cooling on earths surface

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