Lee knew that certain events occur to create new material in the process of sea-floor spreading. What is the CORRECT ORDER of the steps of this process?
a. The ocean floor on both sides of the crack moves farther away from the mid-ocean ridge, Molten material flows upward in a crack in Earth’s crust, The ocean floor gradually becomes wider, The molten material hardens into solid strips of rock on both sides of the crack.
b. The molten material hardens into solid strips of rock on both sides of the crack, Molten material flows upward in a crack in Earth’s crust, The ocean floor on both sides of the crack moves farther away from the mid-ocean ridge, The ocean floor gradually becomes wider.
c. Molten material flows upward in a crack in Earth’s crust, The molten material hardens into solid strips of rock on both sides of the crack, The ocean floor on both sides of the crack moves farther away from the mid-ocean ridge, The ocean floor gradually becomes wider.