Scandinavia and the World

Comments #9793481:

Great Deal 9 10, 5:52am

The sand in the Sahara is wind blown, and therefore is very round and smooth like river pebbles. The sand in Australia has been recently washed up from the sea, and has likely come out of the butt of a parrotfish within the past century. It is made of tiny bits of coral, and therfor is like jacks. When you put weight on sahara sand it comes out from under your foundations like ball bearings, but the Australian sand simply becomes more compact