I think it may have had something to do with Brit and France helping them win the war. Thus it made them as a fall back or cushion for the ottoman empire because they felt that they where able to rely on them now.
I wonder whether there would be also other options, but one very important aspect is the smog: the city center is where many industry-relevant things meet: the factories are all around it, transport, cars... and since it is surrounded by bad air, the air takes longer to dissipate. This is especially visible if the city is in a valley, such as Mexico city foe example.
Answer:
also known as the Transcontinental Treaty, or the Florida Purchase Treaty, was a treaty between America and Spain that took place in 1819 and it ceded the Florida territory to the United States and was considered to define the border between the U.S. and Spain
Explanation:
Spain realized they would not be able to stop America from taking Florida so they decided to instead take a loss from war, sell them the land so that it is a "win-win" for everyone
