How does subduction sea floor spreading theory of continental drift (plate tectonics) formation of mountains/volcanoes/trenches earthquakes change earth's lithosphere

For sure, one of the answers is Plate tectonics. The second answer would most likely be subduction, due to the fact, in the lessons revolving this question, it mentions both earthquakes and volcanoes caused by subduction.

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it

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