Q:  Using the median values for metallicity of the LMC (purple) and
         SMC (cyan) in the figure above, compare the fraction of
         heavy elements in stars in each galaxy to that in the Sun.



           LMC:  [Fe/H] = -1.19   --->   10^(-1.19) = 0.065 solar

           SMC:  [Fe/H] = -1.47   --->   10^(-1.47) = 0.034 solar


         Recall that it's rare to find a star in the Milky Way with
         a fraction less than 0.25 solar.