Answer:
Railroads improved the movement of people from one area to the other 
Observation balloons gathered information about the enemy and communicated it back to the officers
Explanation:
i took the test.
 
        
             
        
        
        
Answer:
The family looks like they are moving maybe immigrants and my guess is they are moving to america.
Explanation:
 
        
                    
             
        
        
        
You have to choose something like the Berlin Airlift for example, and you need to explain how it reflected the us policy of containment. 
Be sure to add the bolded parts 
here is some information you could use for the article you need to write-- 
<span> --The Berlin Airlift came about as a
result of an economic crisis and an attempt by the West to introduce a
new currency to stabilize the country’s finances. 
The Russians closed
access to the Western-controlled sectors of Berlin, threatening to
starve the people in those sectors unless the Allies withdrew their
currency plans. 
Since ground and rail transportation routes were blocked
by the Communists, the west flew planes into West Berlin with food and
supplies, starting in June of 1948. 
By the following spring, more
supplies were reaching the city than had previously arrived by rail, and
the Soviets ended the blockade in May of 1949. None of this changed the
boundaries or lowered tensions much.
--</span>
The West, primarily the U.S.
simply maintained the status quo with their policy of containment so
that Communism didn’t speak significantly into other parts of the world.
The freedom of West Berlin was an example of the will of the West to
maintain that containment. 
--
<span>The thinking at the time was that,
if South Viet Nam fell to the Communists in the North, then the other
countries in the region would “fall like dominoes.” (</span><span>the domino theory) 
</span>
        
             
        
        
        
Ulysses S.Grant
He was the final commander of the union Army
        
             
        
        
        
Answer: Rubber, glass, and oil industries.