Question

what eventually causes a release of stored energy at transform fault boundaries? plate fusion a decrease in temperature overcoming the friction between plates

Explanation:

At transform fault boundaries, plates are sliding past each other. Friction between the plates resists this movement and stores energy. When the force pushing the plates exceeds the frictional resistance (overcoming the friction between plates), the stored energy is suddenly released. Plate fusion is not a process at transform faults. A decrease in temperature is not the direct cause of energy release at these boundaries.

Answer:

overcoming the friction between plates