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Earth System Topics: Oceans

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Seasonal variation in light, mixing depth and primary productivity in temperate northern hemisphere waters
Lauren Sahl, Maine Maritime Academy
In this exercise students work with light, temperature, and phytoplankton biomass proxy (chlorophyll a concentration) data to; Become more skilled in reading and interpreting semi log graphs, temperature profiles, ...

ConcepTest: Ocean Salinity During an Ice Age
One million years ago ice sheets covered much of the Earth's land surface during an ice age. How did this affect the salinity of the oceans? a. Oceans were saltier than today. b. Oceans were less salty than ...

ConcepTest: Ocean Salinity #1
How would the salinity of the oceans vary if the continents and oceans each covered 50% of Earth's surface and precipitation and evaporation were similar to present? a. salinity would be lower than today b. ...

ConcepTest: Ocean Salinity #2
How would salinity of the oceans vary if the oceans were twice as deep as present and held approximately twice as much water? a. Salinity would be less than present b. Salinity would be greater than present c. ...

ConcepTest: World Oceans #2
Examine the map of the world's oceans and use it to answer the following question. Which of the locations would yield the lowest salinity values? a. B b. D c. C d. F

ConcepTest: Ocean Salinity #3
Predict what would happen to the salinity of the world's oceans if the Indian Ocean was blocked off and all of its water evaporated. a. World's oceans would become more salty b. World's oceans would ...

ConcepTest: Ocean Conveyer Belt Speed 1
Adding more salt to the North Atlantic Ocean would cause the global ocean conveyer belt to a. slow down b. speed up c. undergo no change

ConcepTest: Ocean Conveyer Belt Speed 2
Adding more freshwater to the North Atlantic Ocean would cause the global ocean conveyer belt to a. slow down b. speed up c. undergo no change


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