Explain how the Transcontinental Railroad
changed travel to the West,
what benefits did it have?

It made commerce possible on a vast scale.

Explanation:

In addition to transporting western food crops and raw materials to East Coast markets and manufactured goods from East Coast cities to the West Coast, the railroad also facilitated international trade.

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a. because the u.s. was the leading with the most technology, economy, etc. also was teamed with other allies witch boosted the economy and materials to improve technology and use it.

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