Describe the stages of the life cycle of stars of average mass, noting what is produced or consumed at each stage. What are some heavier elements produced in stars, and by what process did they form?

Draw the farm's ppf for corn and beef. draw a point that shows an inefficient combination of corn and beef. label ita. draw a point that shows an unattainable combination of corn and beef. label itb. draw a point that shows an efficient combination of corn and beef. label itc.