Convergent faults . happen when plates move away from one another happen when plates move toward one another can form volcanoes can create mountains

Plates collides or grind along each other.

Explanation:

Thus is produced when the plates collide with each other and are subjected to the formation of the volcanoes and the larger subduction zone s that also creates mountain systems and helps in the study of the orogenesis. This occurs when the heavier plate is thrust downwards into the mantel creating faults.

81 is a composite number