put the steps of seafloor spreading in order from first to last. magma hardens. a crack forms. rock moves…

put the steps of seafloor spreading in order from first to last. magma hardens. a crack forms. rock moves outward. magma pushes upward.

put the steps of seafloor spreading in order from first to last. magma hardens. a crack forms. rock moves outward. magma pushes upward.

Answer

Brief Explanations:

Seafloor spreading starts with a crack forming in the ocean - floor. Then magma pushes upward through the crack. Magma cools and hardens to form new rock. Finally, the newly - formed rock moves outward.

Answer:

  1. A crack forms.
  2. Magma pushes upward.
  3. Magma hardens.
  4. Rock moves outward.