Question

(03.03 mc)
the movement of tectonic plates in two different locations is shown below:
location a
location b
which statement describes the most likely event?
subduction occurs at location a.
seafloor spreading occurs at location a.
volcanic activity occurs at location b.
accretion occurs at location b.

Explanation:

• Location A: The arrows show plates moving apart. This is characteristic of a divergent boundary. At divergent boundaries, seafloor spreading occurs (not subduction which is at convergent boundaries).
• Location B: The arrows show plates moving towards each other (convergent boundary). At convergent boundaries (especially where one plate is oceanic and the other is continental), volcanic activity can occur due to the sub - duction of the oceanic plate. Accretion (the process of adding material to a tectonic plate) is more associated with convergent boundaries where material is scraped off the subducting plate, but volcanic activity is a more direct and common result at such boundaries compared to the options given.

Answer:

Volcanic activity occurs at Location B.