Final answer:
America gained territory and resources but also lost Native American lands and Mexican territory during Manifest Destiny.
Step-by-step explanation:
America gained a significant amount of territory and natural resources during the period of Manifest Destiny. However, it also lost certain cultural and tribal lands belonging to Native American tribes, causing displacement and conflicts. Additionally, the expansion westward led to increased tension and eventual war with Mexico, resulting in the loss of Mexican territory.
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