1. Which development during the 1950s and 1960s added to world opinion of the United States as a land of plenty?

A. the location of the United Nations in New York

B. air travel

C. first space exploration

D. television

D. television

Explanation:

During the 1950s and 1960s, television was introduced to the US, and companies took off from there. Television evolved from silent, black and white scenes to color.

Previously, the US was already regarded by many as a nation of prosperity and wealth, and this invention only reinforced that.

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