The groundwater location that can be seen clearly is the cave. The existence of underground rivers in the cave can be used as a natural laboratory by the researchers. The location is rather open, making the groundwater source in the cave is quite easy to be studied. There are many things that experts can explore. That's because there are many unique organisms that inhabit underground rivers....
RE: Geology and Civilization Part 2: Not a Drop to Drink
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Geology and Civilization Part 2: Not a Drop to Drink