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which of the following best describes a difference between enslaved people in cities and those on plantations in the
1800s?

the growing interconnectedness of the world through communication, trade, and the exchange of ideas is an important theme in the history of the 20th and 21st centuries.

explanation:

a. theta waves. this is because the person is in a light sleep which means the brain waves would show these kind of waves.

islam spread slowly through much of africa through trade and preaching.