How has the development of the commercial airline industry affected life in the us A. By decreasing the demand for alternative energy.
B. By reducing air pollution levels in cities.
C. By reducing travel time over long distances.
D. By decreasing government regulations on travel.

Why is the end of the cold war tied to the american domestic economy during this time?

How would you describe the relationship between the major world religions today? how do those relationships manifest in the united states today?

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.