Answer: World War II was the biggest and deadliest war in history, involving more than 30 countries. Sparked by the 1939 Nazi invasion of Poland, the war dragged on for six bloody years until the Allies defeated Nazi Germany and Japan in 1945.
Explanation:
Answer:One important result of industrialization and immigration was the growth of cities, a process known as urbanization. ... These businesses attracted immigrants and people moving from rural areas who were looking for employment. Cities grew at a rapid rate as a result.
Explanation:
The correct answer is - rugged mountains and hills made inland contact difficult.
While this answer may be surprising it is nevertheless true. At the time, there were no modern ways of transport. Moving from one location to another greatly depended on how passable a terrain was. Since the terrain between Greek city-states was very difficult to pass, maintaining autonomy and the sense of belonging only to the city was strong instead of belonging to the country.
