Answer:
One reason that people may desire to migrate away from metropolitan areas is an overcrowding population.
Explanation:
While living in a metropolitan area has many benefits (career and education opportunities for example) most people end up leaving because the busy atmosphere isn't for them. Whether there is a lack of sanitation from overcrowding, noise at all hours of the night, or the size of the population isn't desirable.
I'm also going to assume this is for AP Human Geography, a test I took a few years ago and passed :)
The correct answer is - Native cultures adopt some foreign customs.
The globalization is a process that spreads and promotes lot of things around the world, one of which is the culture. The native cultures often tend to adopt foreign customs through the globalization. The reasons for this can be seen in the fact that they can be useful, they seem more ''cool'', the people want to keep pace with the developed world, but also because of the media and propaganda. While this may be nice in a sense of uniting the world, it is also very harmful toward the native cultures, as the younger generations tend to be focused on the foreign one and neglect their own one, so many cultures are on the verge of dying out.