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

SDSU Oceanography 100 FINAL Exam Questions And Answers (Updated And Verified) What is the origin of the Earth? - answerFormed out of a solar nebula What are the origins of Life? - answerArchaea - the oldest origin of life on Earth What is kinetic energy? - answerThe energy of motion What is heat energy? - answerEnergy created by particles of matter rubbing together What is density? - answerA measurement of the amount of matter in a given volume of something. (mass per unit volume) What is convection? - answerTransfer 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,