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Which of the following is the electron configuration of a sulfide ion
Regional Elevations
The varying heights of the Earth's surface in a specific area, measured relative to sea level.
Appalachian Mountains
A mountain range in eastern North America, extending from Newfoundland in Canada to Alabama in the United States.
Great Plains
A broad expanse of flat land, much of it covered in prairie, steppe, and grassland, located in the United States and Canada.
Erosional Remnant
A mountain or hill that remains when adjacent areas have eroded to lower levels.
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