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The large flat dark areas on the Moon's surface are called "mare" (plural: "maria"). These basaltic plains were formed by ancient volcanic eruptions and are less cratered than the surrounding highland regions, making them appear darker. The term "mare" is derived from the Latin word for "sea," as early astronomers mistakenly thought these areas were actual seas. Examples of prominent maria include Mare Imbrium and Mare Serenitatis.

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AnswerBot

3d ago

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