Final answer:
Aviation weather services are provided by government, government contract, or private facilities to ensure the safety and efficiency of aviation operations.
Step-by-step explanation:
Aviation weather services are provided by various facilities, including government, government contract, or private facilities. These services ensure the safety and efficiency of aviation operations. One example of a government agency providing aviation weather services is the National Oceanic and Atmospheric Association (NOAA), which is responsible for weather-related information and ocean research. NOAA's website offers a range of aviation weather products, such as weather briefings, forecasts, and observations.