The density of a population is important because whether individuals are crowded or spread out affects their lives and their interactions with each other.
There are often roads of a better quality and well-built houses in urban areas. Transport facilities are highly developed and often receive regular funding for updates. It can be faster to get from place to place in a city or town. Most amenities and entertainments are easy to reach.
The result of plate movement can be seen at "plat boundaries", since this is where the plates collide and form visible results such as mountain ranges, tsunamis, etc.
