Each degree of latitude or longitude is subdivided into how many units?

Each degree of latitude or longitude is subdivided into 60 units known as minutes. This division is essential for navigation and mapping, as it allows for more precise location descriptions. Each minute can further be divided into seconds. This system stems from ancient measurements and the way the Earth was divided geometrically, which has been standardized in modern navigation and geospatial referencing. Understanding this subdivision is important for pilots and navigators, as it aids in calculating distances and determining positions accurately while navigating through the National Airspace System.