What was an effect of the discovery of the new world in the late fifteenth century?

An effect of the discovery of the New World in the late fifteenth century was a global exchange of plant life as different plants were transported to America where they thrived, but different plants were also transported back to Europe and thriwed there as well

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The transcontinental railroad provided a means of fast transportation. it cut a 6 month trip into 6 days, created jobs for many people and encouraged immigration. the homestead act played a huge role in western expansion; it allowed settlers to begin a fresh start, and gave them land in exchange for their residence for up to five years and a small fee.