D: The conquests brought great power and wealth to the Romans.
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.
Joseph Lister, 1st Baron Lister, OM PC PRS (5 April 1827 – 10 February 1912), known between 1883 and 1897 as Sir Joseph Lister, Bt., was a British surgeon and a pioneer of antiseptic surgery.
The production of steel was entirely crucial to the development of railroads, since the rail lines themselves were made of steel, without which the trains would not be able to move.
