The correct answer is - A. Seoul grew much more rapidly.
Even though both New York and Chicago has had relatively quick growth rate since the 19th century, they can not match the tempo of growth rate of modern Seoul. After the end of the World War II, Seoul's population skyrocketed. Prior to the war, the city had walls around it, and the space for living was not changing, thus the population was relatively stable and with the same size. After the war though, the removed walls, foreign influence, and more open attitude, led to dramatic growth rate of the city. From being a city that had bellow one million citizens, Seoul grew to have almost 10 million people nowadays, and that has happened in a period of only around 70 years.
Explanation/Answer:
Among Russia's most important environmental problems: Water pollution is the most serious concern. Less than half of Russia's population has access to safe drinking water. ... Air quality is almost as poor as water quality, with over 200 cities often exceeding Russian pollution limits, and is likely to worsen.
Cutting down the trees! (Stop cutting them down)
And human presence disrupting the ecosystem (let the environment be)
