Answer:
they can conclude that they was not as extinct as you think they was.
Explanation:
in my opinion if im wrong tell me.
<span>The mineral crystals in obsidian are too small to see without a microscope. This is because the rock cools so rapidly from magma that crystals barely have time to form. Obsidian is a normally happening volcanic glass framed as an extrusive molten shake. It is delivered when felsic magma expelled from a well of lava cools quickly with negligible precious stone development.</span>
I'm pretty sure it's Cells
