Final answer:
Lithospheric plates move at a range of a few millimeters to a few centimeters per year. Their movement can be either divergent, convergent, or transform.
Step-by-step explanation:
Lithospheric plates, also known as tectonic plates, move at different speeds depending on their location. On average, these plates move at a range of a few millimeters to a few centimeters per year. This is approximately the same rate at which your fingernails grow. The movement between plates can either be divergent (moving away from each other), convergent (moving toward each other), or transform (sliding past each other).