Don paladio had been a pharmacist in new york city. he retired to florida and spent the better part of everyday swimming in the gulf. he was healthy and strong. gradually, however, his years of smoking began to compromise his lung’s capacity. soon he could not swim at all. he enjoyed the beach from under his umbrella. eventually, the trips to the beach were not possible. the diagnosis was pulmonary emphysema and copd. oxygen was needed, and his activities were diminished to cooking dinner for his wife and himself. don was embarrassed about the oxygen tank and would no longer go out in public. he died when he was 85.

Subduction zones form when an oceanic plate collides with another oceanic plate or continental plate. the continental crust is lighter and less dense than oceanic crust. continental crust's density is approximately 2.7 grams per cubic centimeter. oceanic crust is thinner and the average density is about 3.3 cubic centimeters. when the two crustal plates converge the oceanic plate always bends and subducts beneath a continental plate. once the oceanic crust subjects, the rocks are subjected to changes in heat and pressure. because of this, we would expect to find rocks in the area of a subduction. a) clastic b) igneous c) metamorphic d) sedimentary