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Which ocean trench is the longest?
Quick Answer
The Mariana Trench is not the longest; the Peru–Chile Trench is among the longest, stretching roughly 6,000 kilometers along South America’s Pacific coast.
The Full Story
The Peru–Chile Trench, also called the Atacama Trench, is one of the longest ocean trenches in the world. It extends for roughly 6,000 kilometers along the western edge of South America. Like other trenches, it forms where one tectonic plate subducts beneath another. It is a major feature of the Pacific Ring of Fire.
Key Facts
1.Length: roughly 6,000 kilometers
2.Also called the Atacama Trench
3.Located off the west coast of South America
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