are geographic areas with clear borders in which a country is assigned responsibility for air navigation services. Which of these fits in the blank?
A) Class A airspaces
B) FIRs
C) FSSs
D) Class B airspaces
E) Control zones

Question

Quizplus · Accepted Answer

FIRs (Flight Information Regions) are geographic areas with clear borders in which a country is assigned responsibility for air navigation services. Class A and Class B airspaces refer to specific types of controlled airspace, while FSSs (Flight Service Stations) and control zones are specific types of air traffic control services within controlled airspace.

Are Geographic Areas with Clear Borders in Which a Country