Define "Air Traffic Control" (ATC) and its role.

Air Traffic Control (ATC) is indeed defined as a service that provides guidance and directions for safe air traffic movement. This encompasses a wide range of responsibilities, including the provision of clearances, instructions, and traffic advisories to pilots and ensuring the safe and orderly flow of air traffic in controlled airspace.

The role of ATC is critical in maintaining separation between aircraft, coordinating takeoffs and landings, and managing flight paths to efficiently handle the high volume of air traffic in busy airspace. This is essential for preventing collisions and ensuring that aircraft operate safely and efficiently.

The other options do not capture the comprehensive responsibilities of ATC. While weather updates may be relevant to pilots’ decision-making, they are not the primary function of ATC. Additionally, ATC is not solely focused on ground operations; instead, it encompasses both airborne and ground traffic management within designated airspace. Lastly, while monitoring air traffic is part of ATC’s operational duties, it is a broader service that entails active communication and coordination rather than just observation.