<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be the "Ancient Greeks," since they were the leaders of trade in the Mediterranean Sea. </span></span>
The answers are b.water scarcity and then d. dust storms . this is because it is very dry and lacks water x
The Enlightenment produced numerous books, essays, inventions, scientific discoveries, laws, wars and revolutions. The American and French Revolutions were directly inspired by Enlightenment ideals and respectively marked the peak of its influence and the beginning of its decline.
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.