Background: In 2050, the earth is only covered in 15% forests, half of the forests of today. Of the forests that were cut, 75% were removed to make room for farmland or for mining. Desertification has occurred in many deforested areas. The other 25% of deforestation occurred to make room for urban sprawl for an expanding population. Temperatures have risen globally and many species of
trees can no longer thrive in the hot temperatures.
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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