alleryAt the Mid-Atlantic Ridge, about how fast do tectonic plates move each year?
A400 to 500 mm a year
B100 to 150 mm a year
C1 to 4 mm a year
D10 to 40 mm a year
Answer & Solution
Correct answer: D. 10 to 40 mm a year
Plates at the Mid-Atlantic Ridge move about 10 to 40 mm a year, roughly as fast as fingernails grow.
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