<span>It reduced coast-to-coast communication from about 180 days to about a week.
This question is mildly ambiguous due to the word "communication". Does it mean "Speed of sending a message?" or "Speed of moving a physical object?" Given the available options as answers, I will assume the meaning is "Speed of moving a physical object?" With that in mind, let's look at the available options and see what makes sense.
It made coast-to-coast communication instantaneous.
* Even modern jets can't travel from coast to coast instantaneously, so you wouldn't expect a train to do so either. So this choice is just plain silly and therefore wrong.
It reduced coast-to-coast communication from about a week to about a day.
* A stagecoach had an average speed of about 5 mph and covered 60 to 70 miles per day. So it's not going to go from coast to coast in only a week. And since that part of the answer is wrong, this choice is wrong.
It reduced coast-to-coast communication from about 180 days to about a week.
* The 180 day estimate is definitely doable. That's an average speed of about 17 miles per day which is a good speed for a person walking day to day. And that would be about 400 miles per day for the train. The numbers make sense and this is the correct answer.
It made coast-to-coast communication more complicated.
* Let's see. Buy a train ticket and possibly arrange for 6 layovers. Or plan a multiple month trip and possibly coordinate that effort without having any rapid means of communications? This option is just plain silly when you consider the logistics of traveling for several months vs traveling for a mere week. So this is a bad choice.</span>
Answer: Professionals such as those listed want to help people! They're brave and very important to society, without them we wouldn't be as stable as we are today. It's important to help people when you get the chance, and these people are willing to take great risks to save lives. We should be very thankful for them as they help and save people daily.
Explanation:
The correct answer is letter C.
Explanation: In this quote <em>"The American continents . . . are henceforth not to be considered as subjects for future colonization by any European powers."</em>
The answer it will be The United States had become the dominant world power.
Answer:
the 13th amendment was created for the purpose of abolishing slavery.
Explanation:
the emancipation proclamation was the first technical shot at getting rid of slavery but it wasn't official until the 13th amendment was made
Answer:
It's effective because it shows how we have a lot of devoted people, so we should ask what our country should do to improve the country.
