Answer: El Salvador
Explanation: El Salvador has a population density of 303 people per square kilometer (785 per square mile).
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<span>A.
Airports in the early 1920s catered to municipal and regional travel, while airports in the 1930s served as hubs for travel between countries.
B.
Airports in the early 1920s had larger runways and airport space, while airports of the 1930s had smaller, more efficient layouts.
C.
Airports in the early 1920s catered to travel between countries, while airports in the 1930s served as hubs for regional and municipal travel.
D.
Airports in the early 1920s were located in West Coast cities, while airports in the 1930s were located in East Coast cities. </span>
The reasons as to why the Indo-Europeans migrated to Europe were the better climate conditions, more grazing land and fertile soil, and overpopulation.
Explanation:
The Indo-Europeans were a group of people that formed and lived in the Eurasian Steppes, mostly in the lowlands of what is now Central Asia. Central Asia though was not offering the best living conditions, as the climate was harsh, fertile soil, was lacking, the grazing lands were limited, and the population of the Indo-Europeans was constantly growing. This made numerous groups of these people to migrate in several waves toward other regions, including Europe.
Being a war-like people and superior in combat, the Indo-Europeans found it easy to move into the European territories and settle in. The migration waves were mostly going through the lowlands north of the Black Sea, and through Anatolia and the Balkan Peninsula. Very quickly the Indo-Europeans managed to become dominant in Europe, establish their culture, language, and beliefs.
The main reason for migration were:
- overpopulation
- better grazing lands
- fertile soil
- better climate
Ethnic families that are believed to have originated from the Indo-Europeans are:
- Celtic people
- Germanic people
- Slavic people
- Baltic people
- Italic people
- Daco-Thracian people
- Illirian people etc.
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Answer:
The most common geographic boundary is the physical boundary.
Explanation:
Rivers, mountains, lakes, deserts are all physical boundaries.
The Mississippi River is a physical boundary between many countries that trespasses, including Iowa and Illinois, Louisiana, and Mississippi.
Pyrenees Mountains are also the geographic boundary between France and Italy.
