Ascientist realizes there was a significant increase in the number of deaths related to skin cancer last year. which part of the engineering process is she most likely engaged in?
a) knowing the background
b) evaluating the results
c) making a plan
d) identifying a need

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.