Why do airline pilots use great-circle routes to plot airline flight paths?

What was istanbul called before he ottomans conquered the city in the 15th century

Which of the following best describes brazil's economy from 1650-1880? a. it gradually shifted to manufacturing as the industrial revolution progressed. b. it was based on mining. c. it was based on plantation agriculture, where slaves served as a labor force. d. it was based on small, family-owned farms.

What weather system might be occurring if the pressure gradient decreases and fish harvests in peru are weaker than normal