Unusual desert rocks suggest unknown microorganism that uses marble and limestone as a habitat
In the desert areas of Namibia, Oman, and Saudi Arabia, research work has revealed unusual structures that are probably due ...
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Erosion and Weathering
Weathering and erosion slowly chisel, polish, and buff Earth's rock into ... an acidic concoction that dissolves rock. For example, acid rain dissolves limestone to form karst, a type of terrain ...