This magmatic rock consists of volcanic glass (SiO₂,MgO,Fe₃O₄). It is the homogeneous volcanic glass with small water content. Therefore obsidian is very brilliant. In the ancient time made mirrors of it.
When a liquid is frozen, the atoms in the liquid slow their movement due to lack of energy so the substance becomes hard.
Marine west coast, humid subtropical, and Mediterranean.
Answer:
violet
Explanation:
just violet
oh and you spelled "COLER" wrong, its color or colour if you live somewhere else
A, b, and d. mass could be important in your calculations though.
