<span>The railroads had to pass through mountains and rivers.</span>
Answer:
his experiences looking at the stars made him want to learn more about astronomy
Explanation:
The major benefits of the Louisiana purchase were the vast expansion of the territory of the United States and the acquisition of an abundance of natural resources for a modest price. It removed France as a colonizing presence in the area and gave the United States the important port of New Orleans and the trading channel of the Mississippi River.
<span>The No Child Left Behind Act was a major education initiative because it required states to test students in reading and math throughout their education until high school. This was to ensure that public school students received a proper education.</span>