Apes unit 4 test| 45 Questions| Correct Answers| Verified

What are the negative environmental impacts of HEV (hybrid vehicles)? - ANSWER -Needs Neodymium, lithium, and lanthanum. - Causes water to be more acid when mining those three by dissolving metals and minerals How old is the Earth believed to be? - ANSWER - 4.543 Billion years / 4.6 billion years (in textbook) What is the composition of Earth's layers? What is the order? - ANSWER -The earth is composed of concentric layers. - Inner Core, Fluid Core, Core Floaters, Lower Mantle, Upper Mantle, Crust How are earths the elements arranged from interior to exterior? What are those elements? - ANSWER nickel and iron are the heaviest so they are in the middle then the they get less dense as you approach the crust. the big 8 - ANSWER oxygen(46%), Silicon(27%), aluminum (8%), iron(5%), calcium(3%), Sodium(2.8%), potassium(2,6%), magnesium(2.1%), and other (4%) of earth What happens at a hotspot? - ANSWER volcanic action happening in the middle of the plates What was Alfred Wegener's evidence for the connection of the continental plates? - ANSWER once compressed into a single pro-continent which he called Pangaea (meaning "all lands"), and over time they have drifted apart into their current distribution What are the three major tectonic plate boundaries? - ANSWER