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Did you know that the Earth’s longest mountain range is
underwater and is called the mid-ocean ridge?
The Mid-Ocean Ridge system, shown above snaking its way
between the continents, is more than 56,000 kilometers (35,000 mi)
long. It circles the earth like the stitching on a baseball!
Continental crust diverging from continental
African rift valley
Iceland’s rift valley
A transform boundary is a place where
two plates slip past each other, moving in