The correct answer is B) The power to ratify changes to the Constitution.
The federal government is given the ability to tax citizens multiple times. This includes Article 1 Section 8 of the US Constitution and the 16th amendment (which establishes the federal income tax).
The power to regulate interstate commerce is also in Article 1 Section 8 of the US Constitution. This was further reinforced by the Supreme Court case Gibbons vs. Ogden.
The US Constitution also explicitly gives the right to sign treaties to the federal government.
This is why B can be the only correct answer.
Answer: B. by working together voluntarily
In 1883, railroad companies were able to standardize their timetables. One of the best practice that they did is that they work together voluntarily for the welfare of the majority. It is the unity that they were able to construct that made the standardization of their timetables.
"<span>Plants and small animals might suffer, and some might die" would be the best option, since the poor air quality would most likely affect certain plants and not others--some of which would be used for food by small animals. </span>
I think the correct answer is true
In the immediate postwar period, France was the only country in Europe to encourage permanent immigration. In this respect its policy resembled that of the United States. Yet, as elsewhere in Western Europe, France's recruitment of new workers halted with the first oil shock in 1973.