If business is now a global affair, then the export-import business is important, lucrative and necessary. An export-import agent is not a broker --- the agents are lower on the business totem pole.
Most properties are measured using a number and a unit of measurement. The unit of measurement is a standard amount. The number compares the property to that standard amount. This means a tree that is ten times as tall as a meter stick is 10 meters tall.
Distance is the scalar measurement of a length or interval between two points and is measured by considering the complete path that it takes to get from one point to another. Displacement is the vector measure of an interval between two locations and describes the shortest path connecting them. The actual or scalar measure is what is described as the scientific definition of distance. For example, consider an example in which a man walks from his house to his car and back.