SDSU Oceanography 100 FINAL Exam Questions And Answers (Updated And Verified)

fer of heat through currents caused by difference in temperature, which cause difference in density (liquids and gases). What is bioaccumulation? - answeras you go up the base of the food chain, the level of mercury is more concentrated than the base of the food chain How does biodegradation work? - answerNature can decompose the pollutant because it is made by the earth itself How does photo-degradation work? - answerPlastic degraded by sun, meaning it gets smaller What is diffusion? - answergoing from a high concentration to a low concentration What are the 3 plate boundaries? - answerDivergent, Convergent, Transform Where are trenches located? - answerAt subduction zones What are hot spots? - answerVolcanic centers resulting from hot materials produced deep in the mantel What is our plate boundary here in San Diego? - answerTransform Boundary Where is our plate boundary located? - answerSan Andreas Fault In which direction are we moving, considering moving plates? - answerNorthwest What are the 2 continental margins of Marine Provinces and where are they found? - answer1. Passive Margin: within a plate, little tectonic activity, larger shelf, Atlantic-type 2. Active Margin: at a plate boundary, narrow shelf, active tectonics, Pacific-type What are the characteristics of the water molecule? - answer2 Hydrogen, 1 Oxygen Why is water polar? - answerHydrogen is positive and oxygen is negative (opposites attract) What is the heat capacity of seawater? - answer4.19 Joules What is the density of seawater? - answer1 g/cm^3 What are the characteristics of the atmosphere? - answerTroposphere, Stratosphere, Mesosphere, Thermosphere, exosphere What is the Hadley Cell? - answerWarm air rises at the equator and cools/sinks as it approaches 30° Explain the Coriolis Effect - answerCauses moving air and water to turn left in the southern hemisphere; right in the northern hemisphere due to Earth's rotation. What are the two types of surface currents? - answerSurface Currents: wind-driven, move water horizontally Deepwater Currents: density driven, move water vertically Describe Shallow Water Waves - answerWater depth of < 1/20 length; they drag on the bottom Ex) Tsunamis and tides Describe Deep Water Waves - answerWater depth of > 1/2 length; waves do not touch the bottom Ex) Wind Waves What is a tsunami? - answerA long high sea wave caused by an earthquake, submarine landslide, or other disturbance What are the two types of coasts and its characteristics? - answer1. Depositional Coast: flat coast, deltas, barrier islands,