Answer:
B
They allowed Europeans to navigate dangerous mountain passes.
Explanation:
The second alternative is correct (B).
During the Great Depression the film industry became the great highlight of the arts.
The 1930s and 1940s were considered the Golden Age of Cinema. The technologies developed at the time made the films more realistic and cinema was replacing the Theater in the position of main source of entertainment.
G<u>oing to the movies became a social event, so people, tired of the effects of the Great Depression, used the film sections as a source of leisure and socialization, which was good for the minds of people in financial depression.</u>
Well, technically, this is false. The Test Ban Treaty of 1963 prohibited nuclear weapons testing in the atmosphere, in outer space, and under water, but it didn't ban testing underground. However, it does prohibit nuclear explosions underground if they cause "radioactive debris" and contaminate the living surroundings.
<span>The underclass is perpetuated by economic inequality in the United States. Poor, low income neighborhoods that struggle to get by and a reliance on government welfare. Lack of economic resources leads to lack of education, and lack of education perpetuates lack of resources, and it becomes a vicious cycle. Certainly some of this underclass could be attributed to racism, but the majority I would say has to do with the way the economic and tax systems are set up to work in the United States.</span>