What are the layers of the earth and what purpose do each of them specifically serve?
In: Earth Science
Crust- crispy outer shell that you can stand on. Useful for growing trees, holding the oceans, and preventing your legs from being burnt off by the mantle.
Mantle- hot liquid bit. Earth’s gooey centre. Useful for holding up the crust, and for making volcanoes. Acts as the source of geothermal power, and keeps the tectonic plates moving, which allow the map making industry to make a killing every few million years by making the old charts outdated.
Core- hot solid bit. A crystal of iron under enormous pressure, the core acts as the magnetic lodestone around which our geomagnetic field is strung. Helps hold up the mantle, and indirectly permits compasses to work.
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