Por la interacción de la placa oceánica de Nazca con la parte continental de la placa sudamericana.
Africa i believe. Please correct me if im wrong.
The type of region described is an economic region because many of the goals of the EU have to do with trade, jobs, and the economy.
The population of Oregon which is given above may also be expressed in scientific notation as,
4 x 10^6
The magnitude of this number is the exponent of 10 in the scientific notation. Thus, the answer is letter "B. 6".