Earth System Science Exam Questions and Answers 100% Verified
Earth System Science Exam Questions and Answers 100% Verified Stratovolcanoes have a(n)____________________ composition, meaning they are higher in Si, Al, K, and Na than oceanic volcanoes. Andesitic When oceanic lithosphere descends below continental crust, it produces a _______________ ____________, which is marked by an oceanic trench. Oceanic crust Ecosystems that surround the hydrothermal black smokers on the seafloor are called _______ _______________. Vent Community The earth's north and south pole have reversed several times throughout the geologic past. True
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