<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>
Im pretty sure its marble
The answer is C
Answer:
A
Explanation:
a theory is usually supported by evidence or another laws rules. it must have pretty strong evidence, but it can NOT become a law. a law is set in stone, and proved by math.
<span>d. Does sugar or salt have a greater effect on plant growth?
This question has measurable outcomes, that can be repeated and tested. </span>
