SDSU Oceanography 100 FINAL UPDATED
ACTUAL Exam Questions and CORRECT
Answers
What is the origin of the Earth? - CORRECT ANSWER - Formed out of a solar nebula
What are the origins of Life? - CORRECT ANSWER - Archaea - the oldest origin of life
on Earth
What is kinetic energy? - CORRECT ANSWER - The energy of motion
What is heat energy? - CORRECT ANSWER - Energy created by particles of matter
rubbing together
What is density? - CORRECT ANSWER - A measurement of the amount of matter in a
given volume of something. (mass per unit volume)
What is convection? - CORRECT ANSWER - Transfer of heat through currents caused by
difference in temperature, which cause difference in density (liquids and gases).
What is bioaccumulation? - CORRECT ANSWER - as 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? - CORRECT ANSWER - Nature can decompose the
pollutant because it is made by the earth itself
How does photo-degradation work? - CORRECT ANSWER - Plastic degraded by sun,
meaning it gets smaller
, What is diffusion? - CORRECT ANSWER - going from a high concentration to a low
concentration
What are the 3 plate boundaries? - CORRECT ANSWER - Divergent, Convergent,
Transform
Where are trenches located? - CORRECT ANSWER - At subduction zones
What are hot spots? - CORRECT ANSWER - Volcanic centers resulting from hot
materials produced deep in the mantel
What is our plate boundary here in San Diego? - CORRECT ANSWER - Transform
Boundary
Where is our plate boundary located? - CORRECT ANSWER - San Andreas Fault
In which direction are we moving, considering moving plates? - CORRECT ANSWER -
Northwest
What are the 2 continental margins of Marine Provinces and where are they found? - CORRECT
ANSWER - 1. 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? - CORRECT ANSWER - 2 Hydrogen,
1 Oxygen
Why is water polar? - CORRECT ANSWER - Hydrogen is positive and oxygen is
negative (opposites attract)
ACTUAL Exam Questions and CORRECT
Answers
What is the origin of the Earth? - CORRECT ANSWER - Formed out of a solar nebula
What are the origins of Life? - CORRECT ANSWER - Archaea - the oldest origin of life
on Earth
What is kinetic energy? - CORRECT ANSWER - The energy of motion
What is heat energy? - CORRECT ANSWER - Energy created by particles of matter
rubbing together
What is density? - CORRECT ANSWER - A measurement of the amount of matter in a
given volume of something. (mass per unit volume)
What is convection? - CORRECT ANSWER - Transfer of heat through currents caused by
difference in temperature, which cause difference in density (liquids and gases).
What is bioaccumulation? - CORRECT ANSWER - as 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? - CORRECT ANSWER - Nature can decompose the
pollutant because it is made by the earth itself
How does photo-degradation work? - CORRECT ANSWER - Plastic degraded by sun,
meaning it gets smaller
, What is diffusion? - CORRECT ANSWER - going from a high concentration to a low
concentration
What are the 3 plate boundaries? - CORRECT ANSWER - Divergent, Convergent,
Transform
Where are trenches located? - CORRECT ANSWER - At subduction zones
What are hot spots? - CORRECT ANSWER - Volcanic centers resulting from hot
materials produced deep in the mantel
What is our plate boundary here in San Diego? - CORRECT ANSWER - Transform
Boundary
Where is our plate boundary located? - CORRECT ANSWER - San Andreas Fault
In which direction are we moving, considering moving plates? - CORRECT ANSWER -
Northwest
What are the 2 continental margins of Marine Provinces and where are they found? - CORRECT
ANSWER - 1. 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? - CORRECT ANSWER - 2 Hydrogen,
1 Oxygen
Why is water polar? - CORRECT ANSWER - Hydrogen is positive and oxygen is
negative (opposites attract)
