The correct answer is letter D
The authorization for the construction of the railway came through the Pacific Railway Act, which took place in 1862 with support from the United States government. However, for many decades, there was a movement that called for the beginning of the development of the railway. The beginning of the works was the outcome of attitudes from the time when Abraham Lincoln presided over the U.S., however, the project was only completed after his death.
With the construction of the First Transcontinental Railway, it was possible to connect the coasts of the Pacific Ocean with the Atlantic Ocean. For the first time in history, a railway network connected two sea coasts and, thus, the project is still a reference in the field of railway construction.
This is due to the fact that the construction of the First Transcontinental Railway was very difficult. For its development, several applications of engineering and work techniques were necessary, as the railway had to pass through high mountains and various types of plains through the Union Pacific Railroad and Central Pacific Railroad, which gave rise to the eastern and western lines.
No branch is stronger than the other. This is because of the two types of checks and balances that are established. If one governmental branch became too strong, the other branches would be able to neutralize such through its given powers. The second type granted is embedded in the institution, in which each branch is secure against each other.
One of the main reasons why primary sources are valuable to historians is because "<span>They give insight into the thoughts and feelings of a participant in history," since these are sources that originated during the time in question, and are "unaltered". </span>
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The most important outcome of the Adams-Onis Treaty of 1821 was Florida was acquired by the United States. The treaty was considered as a victory for North America. Florida had already become an emerging problem for Spain by then.
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The horizontal axis in the coordinate plane is called the x-axis. The vertical axis is called the y-axis. The point at which the two axes intersect is called the origin. The origin is at 0 on the x-axis and 0 on the y-axis.
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