Respuesta :
Answer:
Green chemistry.
Explanation:
- Many flights between the Europe and north America are done by flying over the north pole and this is done to cut the time and save fuel costs.
The airplanes saved fuel and time based on the principle of great circle route.
The principle of great circle route asserts the shortest distance between two places on the earth lies on the arc of a great circle.
Hence, most of airplane flies on the route principle to save cost and time.
Therefore, the airplanes saved fuel and time based on the principle of great circle route.
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