Answer: Urban = Hight Population Density
Suburban = medium density
rural = low density
Explanation: Think of the areas which are described. In a city, people are usually packed in tight areas, such as apartment buildings. Cities usually have the highest population as well. In suburban areas(neighborhoods) there are still a big population but, they are more spaced out. In rural areas(farms, small towns) there are less people. Because of this, they are more spread out.
Three other revolutions took place in Belgium, Italy, and Poland. The common cause of all of them was nationalism.
The Embargo Act of 1807 was a general embargo enacted by the United States Congress against Great Britain and France during the Napoleonic Wars.