c) Vary water weight percent for the lunar ice or the Mars ice case. Vary from 1wt% to 100wt % in 1wt% increments (you might want to use smaller increments at low wt% and larger at high wt%). Plot the energy to extract 100 MT of water versus ice weight percent.

d) Discuss the results. What does this tell us about the relative difficult of producing water from these different locations? What does part c say about ore grade? e) Pick one of the four cases and discuss what you would do as the next step in the analysis.