Answer: increasing efficiency in telecommunications.
Explanation: Concerns about air pollution led to stricter environmental regulations. Union membership increased as workers sought better pay and conditions.
This is a bit subjective, but one could argue that the Fourteenth Amendment, which was one of the Reconstruction amendments, had the biggest impact on American history since it declared that all American citizens must have equal rights and protections under the law.
Car/automotive industry had the greatest impact on the economy in the 1920s, I believe.
Answer ok aaijahasgajdfshhaa Explanation
One of the major compromises in the Constitutional Convention was between the small states and big states. The small states wanted each state to have the same number of representatives in Congress. The big states wanted representation based on population. ... This compromise has worked for more than 200 years.