Question

plate tectonics
name:
pictured here are the aleutian islands which extend beyond the coast of alaska into the pacific ocean. these islands were created by movement of the pacific plate.
which boundary is this? (circle one) convergent divergent transform
defend your answer:
pictured here is the mid - atlantic ridge. here youll find a deep rift valley. the atlantic ocean itself was created by plate movement.
which boundary is this? (circle one) convergent divergent transform
defend your answer:
pictured here is san andreas fault. this is a location characterized by earthquakes.
which boundary is this? (circle one) convergent divergent transform
defend your answer:

Explanation:

• Aleutian Islands: Convergent boundary. When two tectonic plates converge, especially when an oceanic plate subducts beneath a continental or another oceanic plate, volcanic arcs (like the Aleutian Islands) can form. The Pacific Plate's movement and subduction in this region lead to island - arc formation, which is characteristic of convergent boundaries.
• Mid - Atlantic Ridge: Divergent boundary. Divergent boundaries are where plates move apart. At the Mid - Atlantic Ridge, new oceanic crust is formed as magma rises to fill the gap between the separating plates. The presence of a rift valley is also a key feature of divergent boundaries in oceanic settings.
• San Andreas Fault: Transform boundary. Transform boundaries are characterized by plates sliding past each other horizontally. The San Andreas Fault is a well - known example where the Pacific Plate and the North American Plate slide past one another, and this type of movement is associated with frequent earthquakes.

Answer:

• Aleutian Islands: CONVERGENT.
• Mid - Atlantic Ridge: DIVERGENT.
• San Andreas Fault: TRANSFORM.