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- 1. Multiple ChoiceWhat is the only part of the ocean floor without tectonic activity?continental slopecontinental marginseamountabyssal plain
- 2. Multiple ChoiceWhy is there high salinity in the Mediterranean Ocean?precipitationevaporationvolcanoesdeposition
- 3. Multiple ChoiceSea levels rise when glacial ice caps-growmeltmigratehit the Titanic
- 4. Multiple ChoiceOcean currents are caused by-underwater earthquakeshuman influencesun moon and Earth interactiondensity differences
- 5. Multiple ChoiceUpwelling is most likely to occur in what area?in a deep sea trenchin a shallow gulfalong a coastlinein open ocean
- 6. Multiple ChoiceWhy does an ice shelf float?it is more denseit is less densethe ice is melting faster than it can sinkvegetation is sinking below and causing it to float
- 7. Multiple ChoiceSeawater is typically denser than freshwater due to seawaters-greater depthsmaller masshigher salinitylower freezing point
- 8. Multiple ChoiceContinental shorelines generally have a milder climate than locations inland at the same latitude due to-ocean water acting as a conductor of heatland is a greater storage of heatocean water stores and releases heat more slowly than landland masses release hear slower than land
- 9. Multiple ChoiceWhat part of the ocean floor would be the most difficult to explore due to pressure?continental slopesea mounttrenchabyssal plain
- 10. Multiple ChoiceWhat sea floor feature is created by erosion and deposition?continental risesubmarine canyonMarianas trenchseamount
- 11. Multiple ChoiceWhat part of the ocean floor would be most affected by sea level change?abyssal plaincontinental shelfcontinental slopetrench
- 12. Multiple ChoiceWhat major feature of the ocean floor circumnavigates the Earth?mid oceanic ridgecontinental slopetrenchsea mount
- 13. Multiple ChoiceA trench is formed at what zone?subductiondivergentconvergentstrike-slip
- 14. Multiple ChoiceWhat first accurately mapped the ocean floor?The Spanish armadaChinese armyMagellansonar
- 15. Multiple ChoiceWhat is not a type of ocean pollution?oil spillnon-point source pollutionupwellingtrash dumping
- 16. Multiple ChoiceAn estuary is an area where-there is only fresh waterthere is only salt waterpond water and river water mixfresh water and salt water mix
- 17. Multiple ChoiceEstuaries are vital to the ecosystem because they have high amounts of-dissolved oxygensalinityalgae bloomsbiological activity
- 18. Multiple ChoiceThe Chesapeake Bay is a(n)-estuaryreservoirocean frontcontinental slope
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