The solar pond shown in the figure, below, has a salt concentration that increases with water depth. The resulting water density increases as shown. (a) Find the gauge pressure at the bottom of the solar pond (in kPa); and (b) Calculate the gauge pressure if there were no salt in the pond. Note that the equation provided in the graph (below) is = 1150 − 120 −2 where ‘d’ is in meters and ‘’ is in kg/m3 .