How did the introduction of the horse to north america by the spanish change the lives of native americans?
a. southwestern indians could plow their fields more quickly.
b. eastern woodland indians drove the spanish off their lands.
c. plains indians could travel farther and conduct more trade.
d. pacific northwest indians could hunt buffalo more efficiently.

the main reason that the constitution did not proclaim all men to be free and equal is because of the issue of slavery.

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explanation:

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"globalization has greatly impacted the united states and american citizens. first and foremost, globalization has spread american influence throughout the world. globalization has opened up more markets for the united states, which in effect american companies sell their products worldwide. there has been a rise of multinational corporations and their influence has greatly increased."

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