The answer is D because When oceanic crust converges with continental crust, the denser oceanic plate plunges beneath the continental plate. This process, called subduction, occurs at the oceanic trenches. The entire region is known as a subduction zone. ... The movement of crust and magma causes earthquakes.
1.609/5280 = 3.2/x....1.609 km to 5380 ft = 3.2 km to x ft cross multiply because this is a proportion (1.609)(x) = (5280)(3.2) 1.609x = 16896 x = 16896/1.609 x = 10,500 ft <===
