BB1002.Exam1.StudySet3

BB1002.Exam1.StudySet3 - BB1002 Study Set 3 for Exam 1 (new...

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BB1002 Study Set 3 for Exam 1 (new questions) 1. El Nino Southern Oscillation: (a) results when warm oceanic water rises from the bottom of the Pacific Ocean (b) occurs then cold water rises from the bottom of the Atlantic Ocean and correlates with sunspot activity (c) occurs when cold Pacific water fails to rise in an upwelling and the sea surface temperature rises (d) brings in nutrients from the oceans to the near shore environment resulting in increased fish harvests. 2. Which one of these statements is true? (a) Ocean heights have expanded by a few cm over the past 2 or 3 decades due to thermal expansion of the upper 100 m of the water column. (b) Oceans have gotten higher due to melting ice caps and glaciers. (c) Ocean pH has increased due to the absorption of more carbon dioxide. 3. The thermohaline circulation: (a) is undesirable and governments are trying to slow it down before it is too late. (b) is the result of ice melting in the North Atlantic releasing salt with sinks to the bottom (c) is probably unimportant in maintaining global ocean circulation (d) reduces primary production in areas of the world where it ascends to the surface bringing with it increased salt levels and killing off photosynthetic bacteria. 4. What we term the “dead zone” in the Gulf of Mexico is the result of:
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BB1002.Exam1.StudySet3 - BB1002 Study Set 3 for Exam 1 (new...

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