NASA / SCIENCE PHOTO LIBRARY NASA / SCIENCE PHOTO LIBRARY
Evaporation ponds. Satellite image of evaporation ponds in the desert at Lop Nur, China. These ponds are for the production of pot ash (potassium chloride), which is used as a component in agricultural fertiliser. Image obtained by the Advanced Land Imager (ALI) aboard the Earth Observing-1 (EO-1) satellite.
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