which is the southern limit of north america?
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Panama Canal
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Isthmus of Tehuantepec
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Darién watershed
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Isthmus of Panama
B
Correct answer
Explanation
The Isthmus of Tehuantepec in southern Mexico is traditionally considered the geographic southern limit of North America, separating it from Central America. The Panama Canal and Isthmus of Panama are further south in Central America. The Darién watershed is also in Central America.