At the end of seafloor spreading, where does the molten rock solidify? A: center of the ridge
B: on the edge of the ridge
C: under the new rock
D: between the old rock layers

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.