Read this sentence from the main text: All of this new information should make us think twice about things like antibacterial soap, which gets into our water supply.

What purpose does this sentence serve in the closing paragraph?
To argue that we kill too many beneficial bacteria
To create concern about the water supply
To introduce a new topic that needs scientific study
To suggest the new science of microbes may affect many things

Energy derived from hot rocks and fluids beneath the earth’s surface is

What happens when a magniseum ion ia atracked to a chlrene ion

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