Science Olympiad Dynamic Planet Practice Test

What type of plate boundary exists where two plates move away from each other?

1. Divergent Boundary

2. Convergent Boundary

3. Transform Boundary

4. Subduction Zone

The correct answer is: Divergent Boundary

The type of plate boundary where two tectonic plates move away from each other is known as a divergent boundary. This occurs when the forces within the Earth's mantle cause tectonic plates to separate. As the plates move apart, magma rises from the mantle to fill the gap, creating new crust in the form of volcanic activity and mid-ocean ridges. Divergent boundaries are typically found along ocean floors, where the process of seafloor spreading occurs. This movement is responsible for the creation of new oceanic crust as molten material emerges and solidifies at the surface. The geological features and processes associated with divergent boundaries help to explain phenomena such as earthquakes and volcanic activity, particularly in mid-ocean ridge systems. Understanding this type of boundary is crucial for recognizing how the Earth's surface is continually reshaped over geological time.