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Which one of the following is not an electromagnetic wave?
Borderland
A place between or near recognized borders where no group of people has complete political control or cultural dominance.
Geographical Border
A naturally or artificially designated boundary separating distinct areas, countries, or territories.
Cultural Border
An invisible boundary based on cultural differences that separate areas or people, influencing identity, customs, and practices.
Plains Indians
Native American peoples who inhabited the Great Plains of the United States and Canada, known for their nomadic lifestyles and reliance on the buffalo.
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