Scholarship..............
Ur answer is number 2 i'm almost sure of i
Ok so theirs this thing called asking your teacher for help especially when it’s such an easy question
<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>