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@Nausicaa Deep below the ground. Shallow subsurface is where you find plant roots and fungus. Deep subsurface is below that. There's a lot going on in the deeper parts of Earth's crust.
@Nausicaa Deep below the ground. Shallow subsurface is where you find plant roots and fungus. Deep subsurface is below that. There's a lot going on in the deeper parts of Earth's crust.