Which world event led to the development of increased safety measures for air travel? The Airline Deregulation Act of 1978
The attacks on September 11, 2001
World War I
World War II

What do states primarily use their reserved powers to regulate? a. services related to national citizenship b. issues that affect day-to-day life for state residents c. issues involving taxation d. issues that affect states' interaction with the federal government

What factors allowed philip ii of macedonia to conquer the greek city-states?

What actions did americans take to show their patriotism after pearl harbor?