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yes deserts really were once oceans.I did an experiment, I took some desert sand, sea water, plastic box and a ruler that measures inches and millimeters. I put some inches of sand in the plastic box. Then I put the same amount of water as I put for the sand, I measured it and left it out in the sun to evaporate. I checked it every single week and the amount of the water got lesser and lesser,I kept measuring it with a ruler and after several weeks the water disappeared and the sand dried up. And that is how deserts were oceans in the past.

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14y ago

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