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Which city is represented by the airport code PHX?

  1. Phoenix

  2. Plano

  3. Pittsburgh

  4. Providence

The correct answer is: Phoenix

The airport code PHX represents Phoenix, Arizona. Airport codes are typically derived from the name of the city or the primary airport in that city. In this case, PHX stands for Phoenix Sky Harbor International Airport, which is the main airport serving Phoenix. The other options, while they represent real places, do not match the airport code PHX. For example, Plano is a city in Texas and would have a different code; Pittsburgh, known for its own airport code PIT, is another distinct city; and Providence, the capital of Rhode Island, has an airport code of PVD. Each city has its own unique code, which helps in identifying locations quickly and efficiently within air travel.