I mean, a desert is basically just a huge amount of sand but where does it stop, what is beneath? I googled it and it says there’s groundwater but what does that mean, and (how) is that even possible?
Edit: So, actually the main question I wanted to know is if there’s a exact border between sand and rock, or if the sand just gets denser and denser until it’s rock (but I believe the weight must not be that big), like Saturn or something.
(Yes, I know what a desert is but I specifically need to know about this certain type of desert)
In: 1165
The same stuff that’s under non desert lands – layers of rock. Here and there there might be caverns, but mostly it’s fairly solid, and if there is water, its either seeping though cracks in the rock or its higher up in the bottom sand layer, where it is basically creates wet sand.
Imagine if you filled a glass with dry sand and then poured in some water. It wouldn’t form it’s own clear water layer, it would seep down and mix into the sand at the bottom, so near the top of the glass you would have dry sand, and towards the bottom, wet sand.
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