Answer:
The major technological innovation in the 90's is the airplane.
Explanation:
Until the invention, it was never believed that objects could fly in the air and into space. The innovation by Wilbur and Orville Wright, and later manufacture of airplanes in the 90's changed the economy situation of the decade. This makes it possible to travel to other countries, even continents by a faster and safer means. Thus, average people had the opportunity to travel beyond boundaries, thereby boosting the economy.
The airplane gained more acceptance and countries began to invest in it, thus increasing the number of air travel and airports in different countries. It This ensured a global economic growth as more people prefer air travel to other available means, e.g sea travel.
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