Answer:
The U.S. Congress claims implied powers, which are powers that best completes its enumerated powers, but are not directly stated in the Constitution.
Explanation:
The Implied Powers theory was first expressed by Alexander Hamilton on February 23, 1791; it is applied to the case law of the United States Supreme Court, in particular to extend the jurisdiction of this court to the courts of individual federal states where they are not constitutionally provided for. The extension in particular concerns powers not foreseen by the Constitution but necessary to be able to experience those expressed in the Constitution of the United States, and it is applicable both for the Congress and the Supreme Court.
Answer:
During the Industrial Revolution, the US underwent a technological advancement and a remake of how the economy worked. One of these technological advancement was the assembly line, which helped speed up production, as well as create "specialized" jobs (jobs in which a worker specializes in a part of the creation, such as creation of the engine and only the engine for a car, for example, in case you are wondering - remove the parenthesis and content inside). These changes in how factories worked helped with the mass exodus of the population from the rural areas to cities for higher pays, which helped with the population boom, and the soon to be restructuring of how cities worked and the services they provided. Without the Industrial Revolution, the US would not be the economically (& later miliatry) giant that she is right now.
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In general, it was the local and state governments that enforced these laws during this time, since the federal government lacked practically all powers to intervene in the states' affairs.
B. Because even with many issues that plagued the Roman Empire economically and politically, By the later years of the empire the Roman military was mainly comprised of trained Barbarian soliders who were inferior to earlier Roman soliders causing a significant decrease in the Roman Empires's Military capablities so many barbarian tribes that began to grow such as the Huns, Vandals, Goth etc. Put immense pressure on the Empire, driving them into the ground economically and causing many issues within the government and eventually being sacked, thus marking the end of the Roman Empire. Sorry for the wall of text but hope this helped :)
