Answer:
American airline merging with US airways
Explanation:
The Northwest Airlines merge with Delta Airlines to eliminate the unprofitable routes and save costs. The merger between American airlines and US airways took place to increase their geographical coverage and improved efficiency which could lead them to earn more revenue per seat and become a top rated airline in the entire aviation industry of the world.
To expand his empire, Tang Taizong primarily tightened control of the provinces and inspired a higher sense of "belonging" in the empire, which appealed to many citizens.
because it can show if there were mountains or rivers or other large bodies of water that may have helped the civilization develop.
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