Which statement gives two central ideas from the passage?

Construction of the Transcontinental Railroad

The construction of the transcontinental railroad was a monumental undertaking that shaped the history of the United States. It was an incredible feat of engineering that revolutionized transportation and helped connect the East and West coasts of the country.

Challenges and Importance

The construction of the transcontinental railroad was indeed very challenging. It involved navigating rough terrain, dealing with harsh weather conditions, and facing opposition from various groups. Despite these obstacles, the railroad was crucial to the growth and development of the United States. It opened up new opportunities for trade, travel, and settlement, and played a significant role in the country's economic expansion.

Danger and Diversity

While the construction of the transcontinental railroad was dangerous for the workers involved, it also brought about greater diversity in the nation. People from different backgrounds and cultures came together to work on the railroad, contributing to the multicultural fabric of the United States.

Innovation and Statehood

The construction of the transcontinental railroad led to innovative advancements in transportation technology, such as the invention of track ballast. Additionally, the completion of the railroad played a key role in Utah becoming a state, further solidifying the expansion of the nation.

What are two central ideas from the passage? A. Construction of the transcontinental railroad took many years, and the transcontinental railroad helped the Union Army win the Civil War.
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