Answer the following questions. Sources must be cited in APA format.  What are the different types ...

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Answer the following questions. Sources must be cited in APA format.  What are the different types of budget strategies found at airports?  What are the four categories of O&M expenses that exist at airports? What specific expenses lie within each category?   What are the differences between operating and nonoperating revenues?   What areas of airport operations are principal areas of potential litigation against airports?   What are the primary differences between the residual cost approach and compensatory approach?   How are airport facilities and services priced?   What grant programs exist on the federal level for airports? How are these programs funded? How may funds from these programs be used at airports?   What types of financing programs, or bond issues, are available to airpo1ts?   How do airports contribute to the economic prosperity of the communities they serve?  What types of economic activity are said to be directly generated by airport activity?  What is the multiplier effect?  How have airport-airline relations changed since the years before airline deregulation?  How are contracts between airports and the concessions that serve the airport negotiated?  What issues arise between airport management and the general aviation community they serve?  When did airpo1t noise become a major environmental issue?  What Federal Aviation Regulations are concerned with aircraft and airport noise issues?   What are the most common noise abatement strategies employed at airports?  How does FAR Part 161 aid airports in reducing noise impacts?   What are the most common pollutants affecting air quality emitted from airport activity?  What does the Clean Water Act do to reduce hazards to water quality from airport activity?   What are airports doing to become more economically and environmentally sustainable?  https://youtu.be/wdU1WTBJMl0?si=JqjP9FJh5MGknDM8