Links: GoQuestion 1Correct2.00 points out of2.00FlagquestionQuestion 2Partially correct0.40 points out of1.00FlagquestionMy home ► MEA 101 (003) Fall, 2014 ► Module 2 ► Learning Journal 4  Features of the Ocean Basins and Plate TectonicsQUIZ NAVIGATIONFinish reviewStarted onThursday, September 4, 2014, 1:39 PMStateFinishedCompleted onThursday, September 4, 2014, 1:58 PMTime taken19 mins 20 secsMarks9.73/11.00Grade 3.54 out of 4.00 (88%)In 15-20 words, describe why is the shape and character of the oceanicridge in the Pacific Ocean different than the ridge in the Atlantic Ocean?Answer: The mid-ocean ridge in the Pacific is spreading faster than the Atlantic, so it's broader andlacks a well-developed rift.The correct answer is:Arrange the following features of the ocean (Abyssal plain, Continentalshelf, Island arc, Oceanic ridge, and Oceanic trench) in order fromshallowest to deepest.2nd shallowestAbyssal plain 2nd deepestOceanic ridge ShallowestIsland arc The pacific plate is a fastspreading ridge, while the atlantic is a slow spreading ridgeYou are logged in as Jonathan Kluger (Log out)MEA 101 (003) Fall, 2014 Geology I: Physical1234567Question 3Partially correct1.33 points out of2.00FlagquestionQuestion 4Correct2.00 points out of2.00MiddleContinental shelf DeepestOceanic trench (Deepest) Oceanic trench - Abyssalplain - Oceanic ridge - Continental shelf - Island arc(Shallowest)Here's a cross-section of the seafloor: http://legacy.mos.org/oceans/graphics/planet/features.gifThe correct answer is: 2nd shallowest – Continental shelf, 2nd deepest – Abyssal plain,Shallowest – Island arc, Middle – Oceanic ridge, Deepest – Oceanic trenchWhere would an ocean researcher expect to find the thickest sediments inthe ocean basins? Along the margins of the oceanWhich of the following continents has the largest proportion of passivemargins?AfricaWhich statement is the most accurate? The oldest oceanic crust is located farthest from the oceanic ridgesCompare the coastline of Africa to Australia: http://www.learner.org/interactives/dynamicearth/plate.html You can see that there are no plate boundaries inAustralia (aka all passive margins).The oldest oceanic crust is located farthest from the oceanic ridges.What features on the continents control where the thickest ocean sedimentsare found?Answer: How close to oceanic ridgesFlagquestionQuestion 5Correct1.00 points out of1.00FlagquestionQuestion 6Correct1.00 points out of1.00FlagquestionQuestion 7Complete2.00 points out of2.00FlagquestionThe feature on the continents that controls where the thickest ocean sediments are found isthe presence (or absence) of major rivers, which deposit large volumes of sediment as waterreaches the river mouth.The correct answer is:The margins of continents that are characterized by plate boundaries arecharacterized as “active” margins. Continental margins without plateboundaries are known as “passive” margins. Answer the true/falsequestions below.North Carolina is located along a passive continental margin. TrueThe west coast is located along a passive continental margin. FalseThe Gulf coast is located along a passive continental margin. TrueWhich statement is the most accurate?Select one:a. The oldest oceanic crust is located near oceanic trenchesb. The oldest oceanic crust is adjacent to passive margins in ocean basinsc. The oldest oceanic crust is located farthest from the oceanic ridges d. The oldest oceanic crust is in the largest ocean basin (the Pacific)The correct answer is: The oldest oceanic crust is located farthest from the oceanic ridgesExplain why the statement you picked about the oldest ocean crust in the previous question isthe best choice.The further away you are from the ridge the older the magma that made up the crust, sincethe ridge is the source of the crust.You are logged in as Jonathan Kluger (Log out)New crust forms at mid‐ocean ridges, so theoldest oceanic crust can be found far away from them. The further away from aridge you go, the older the crust gets.Comment:Finish