Question

at which point is crust neither created nor destroyed?
island chain
mid - ocean ridge
divergent boundary
transform boundary

Explanation:

• Island chains are formed by volcanic activity related to subduction (crust destruction in some cases).
• Mid - ocean ridges are sites of new crust creation (divergent boundaries where magma rises).
• Divergent boundaries are where new crust is formed as tectonic plates move apart.
• Transform boundaries are where tectonic plates slide past each other horizontally. There is no net creation or destruction of crust at transform boundaries.

Answer:

transform boundary