Muckrakers presented Americans with facts about corruption in industry and government that prompted them to demand change.
Hope this helps :D
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.
Light energy is quantized
<span>It
means that even though light is a wave, it nevertheless exists in
discrete (distinct, countable and indivisible) units, i.e. particles</span>
Answer:
opened new markets for trade and spurred the creation of timezones
Did he buy a flashlight, because light fills up most rooms.
