<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>
Iron, oxygen and water react with the iron creating a substance known to us as rust.
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Sleeping on the stomach is "prone," on the back its "supine."
Answer:
An underground cavern collapsed
Explanation:
I did research
Answer:
Explanation:
the heart pumps blood throughout the body, and the lungs aid in breathing. the body parts that are found on frog are the heart, the liver, and the stomach, etc.
