Question

The tectonic cycle describes the movement of Earth's crust. Recycled "new" oceanic crust is formed by
at divergent boundaries.

Answer 1

The tectonic cycle describes the movement of Earth's crust, including the formation of new oceanic crust at divergent boundaries through a process called **seafloor spreading**. At these boundaries, tectonic plates move apart, and magma from the mantle rises to fill the gap, solidifying to create new oceanic crust as it cools. This process occurs at mid-ocean ridges, where the earth's plates are actively diverging.