By saying the centennial high school parking lot is five blocks down from the softball field is using a relative location using people's knowledge of a familiar landmark like the softball field as a reference to visualize where the parking lot is in space.
It is the lithosphere that is broken into tectonic plates, which undergo some large-scale motions. The boundary regions between plates are aptly called “plate boundaries.” Based upon their motions concerning one another, these plate boundaries are of three kinds: divergent, convergent, and transform.
External migration takes place for educational or economic reasons as well, but often, it is politically motivated. An international migrant is someone who moves to a different country. Simply, internal migration refers to the movement of people within a country.