Final answer:
The Arctic Control Area and Northern Control Area are classified as Class A airspace, where all flights are IFR and controlled for safety.
Step-by-step explanation:
The airspace classification for the Arctic Control Area and Northern Control Area falls into Class A. Class A airspace is where all flights are provided with air traffic control service and are required to operate under Instrument Flight Rules (IFR). The goal of Class A airspace is to ensure a high level of safety by providing a controlled environment for high-altitude or long-distance flights, which are typical in the vast and less populated regions of the Arctic and Northern Areas.