A solar pond is a man-made pool of saltwater that not only absorbs heat from sunlight, but is able to store it for use in heating or power generation. In a freshwater pond, sun-warmed water rises to the top, loses its heat to the atmosphere, becomes denser, and sinks again. In a solar pond, however, a layer of highly salty water remains trapped at the bottom by its own density, even as it is warmed by sunlight—thereby storing heat. Typically, how hot is the bottom of a solar pond? Discuss