Which of the following is NOT an example of a Convection current? A. The roiling movement of Magma
B. The morning storm by a coast
C. The movement of air in Hadley cells
D. The outwards flow of water in a Rip Current

The next best alternative given up when making a choice is called the a. opportunity cost b. comparative advantage c. primary objective d. negative consequence select the best answer from the choices provided. a b c d