Explanation:
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Answer: Observational Study
Explanation: Observational study involves observing and measuring specific characteristics without attempting to modify the subjects being studied.
<span>The population of the Northern states was more than twice that of the Southern states. Despite the fact that many people, in both the Northern and Southern states, worked on farms during the time before the Civil War, the Northern become both more industrialized and more urbanized, while plantation agriculture remained the focus in the South. The industrial transformation which took place in the North caused the two territories’ economies to develop very differently. Transportation improved via railroad development and manufacturing exploded in the North, making it attractive to opportunity seekers looking for improved wages in the North and West states. The cities in the areas offering manufacturing jobs experienced major population growth which triggered extensive housing and urban development, and provided an economic environment conducive to the establishment of a middle-class made up of skilled and white-collar workers.</span>
Answer:
The conflicts between the two political parties centered on foreign policy and the balance of power between the federal government and the states' governments.
Explanation:
The Korean War happened 1950-1953.
The Cuban Missile Crisis happened after this, in 1962
The Greek Civil War happened before them; in 1946-1949
We can exclude option 1 now.
US envolvement in Vietnam lasted form 1959 to 1975
We can exclude option 4 now.
The U2 Incident happened in 1960: this information lets us exclude option 2)
and we are left with option 3): <span>c. the Greek Civil War --> the Korean War --> U.S. involvement in Vietnam</span>
