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- 1. Multiple ChoiceWhat is the most common salt found in ocean water?Calcium CarbonateSodium PotassiumCalcium MagnesiumSodium Chloride
- 2. Multiple ChoiceHow do conditions change as the depth of the ocean water increases?temperature decreases and pressure increasestemperature increases and pressure increasestemperature decreases and pressure decreasestemperature increases and pressure decreases
- 3. Multiple ChoiceWhat conditions would most likely cause a decrease in the salinity of ocean water?High rates of evaporationFreezing glaciersExtremely hot weatherA river flowing into the sea
- 4. Multiple ChoiceWhat conditions would most likely cause an increase in the salinity of ocean water?High rates of evaporationThawing of glaciersPrecipitationA river flowing into the sea
- 5. Multiple Choice
Which statement best explains the relationship between an area's geography and the temperature of its surface water?
Areas at low latitudes have the warmest water because they have the least change in temperature throughout the year.
Areas at high latitudes have the warmest water because they have the longest seasons.
Areas at low latitudes have the warmest water because they receive the most direct sunlight.
Areas at high latitudes have the warmest water because their days are the longest.
- 6. Multiple ChoiceThe density of ocean water is influenced by what two factors?Salinity and temperatureWater color and chlorophyllDissolved gases and dissolved solidsDissolved carbon and trace elements
- 7. Multiple ChoiceDEEP ocean currents are the result ofWindsTidesChanges in the density of ocean waterThe Coriolis effect
- 8. Multiple ChoiceWhat is a current?temperature and precipitation typical of an area over a long period of timemost powerful surface current in the North Atlantic Oceanlarge stream of water that flows through lakes and/or oceanslarge stream of moving water that flows through the oceans
- 9. Multiple Choice
Where would you find the lowest density seawater
surface zone
transition zone
abyssal zone
- 10. Multiple ChoiceThe energy that drives surface ocean currents comes fromwindwave actiontemperature differencessalinity variation
- 11. Multiple ChoiceBecause of the Coriolis effect, ocean currents in the Northern Hemisphere are deflectedNorthSouthClockwiseCounter clockwise
- 12. Multiple ChoiceOcean currents that move toward the poles areWarm in the N Hemisphere cold in the S HemisphereWarmColdCold in the N Hem. warm in the S Hem.
- 13. Multiple Choice
The Gulf Stream affects the climate of
Great Britain
North Caroliina
South Carolina
All of these
- 14. Multiple ChoiceThe rising of cold water from deeper layers to replace warmer surface water is called__________The Coriolis effectA surface currentReflectionUpwelling
- 15. Multiple Choice
Which the following is most responsible for the tides on Earth?
gravity
winds
temperature differences in seawater
plate tectonics
- 16. Multiple ChoiceWhich of the following results in the least difference between high tide and low tide?spring tidesummer tiderip tideneap tide
- 17. Multiple ChoiceWhat is the relationship between oxygen in water and plankton abundance?As oxygen levels increase, plankton populations increase.As oxygen levels increase, plankton populations decrease.As oxygen levels increase, phytoplankton populations increase but zooplankton populations decrease.There is no relation between plankton abundance and oxygen content.
- 18. Multiple ChoiceThe water in upwellings iscoldnutrient-richoxygen richall of the above
- 19. Multiple ChoiceSpring tides occur when which of the following bodies form a straight line with Earth?the sun and the moonthe moon and Venusthe sun and MarsVenus and Mars
- 20. Multiple ChoiceWhat is the most abundant gas found in ocean water?oxygencarbon dioxidecarbon monoxidenitrogen
- 21. Multiple ChoiceAn observer notices waves 10 meters apart and a new wave passes her every 2 seconds. What is the wave speed?0.2 m/s5 m/s20 m/s
- 22. Multiple ChoiceThe distance between the first and fourth wave crests is 24 meters. It takes 12 seconds for all four waves to pass. What is the wave speed?2 m/s0.5 m/s288 m/s
- 23. Multiple ChoiceWhy does ice float in the ocean?the ice is warmer than the oceanthe ice is less dense than the oceanthe ice is more dense than the oceanthe ice melts faster than it can sink
- 24. Multiple ChoiceWhat term is the measure of dissolved salts in water?ThermoclineSalinitySaltinessTides
- 25. Multiple ChoiceWhat is the steep slope at the edge of the continental shelf?seamountmid-ocean ridgecontinental sloperift zone
- 26. Multiple ChoiceWhat are underwater mountain ranges called?continental shelfmid-ocean ridgesabyssal plainscontinental slopes
- 27. Multiple ChoiceWhat is the deepest part of the ocean basin?abyssal plainstrenchesrift zonesmid-ocean ridge
- 28. Multiple Choice
Scientists used ______ to determine the oceans depth.
Submarines
Sonar
Helicopters
Radiowaves
- 29. Multiple ChoiceWhat happens to pressure as you go deeper into the ocean?increasesdecreasesstays the samedoubles
- 30. Multiple Choice
Free-floating microscopic photosynthetic plants.
phytoplankton
kelp
crustaceans
zooplankton
- 31. Multiple Choice
Mid-ocean ridges (underwater mountain ranges) occur at __________ boundaries.
transform
transform
divergent
convergent
- 32. Multiple Choice
The most valuable resource found in the ocean is
salt
fish
petroleum
trace elements
- 33. Multiple ChoiceWhich three factors are most important in determining the composition of ocean water?Salinity, mass, densityTemperature, salinity densityVolume, density, temperatureDensity, temperature, mass
- 34. Multiple ChoiceTwo types of water currents arelocal and globalsea and landsurface and deepwarm and cold
- 35. Multiple Choice97% of the water on earth is _________, making it undrinkable for humans.fresh waterground watersalt watersurface water
- 36. Multiple Choice10. Watershed is....?Most of the landmass that makes up North AmericaAlmost 80 % of Canada’s surface waterAn area from which all water drains downhill to a common destination.Canada's fun water park
- 37. Multiple Choice
Trenches occur at _____________ boundaries.
subduction
transform
divergent
convergent
- 38. Multiple Choice
Seawater has a salinity of about 3.5% (35 g). According to the graph, what temperature will seawater freeze?
0oC
-2oC
15oC
-20oC
- 39. Multiple Choice
The sinking of a converging tectonic plate into the mantle.
subduction
transsform
divergent
convergent
- 40. Multiple Choice
Name ocean feature
seamount
trench
guyot
continental slope
- 41. Multiple Choice
Identify F
seamount
trench
guyot
continental shelf
- 42. Multiple Choice
Identify D
rift valley
trench
mid-ocean ridge
continental slope
- 43. Multiple Choice
Identify A
continental slope
trench
mid-ocean ridge
continental shelf
- 44. Multiple Choice
Identify B
continental slope
guyot
seamount
continental shelf
- 45. Multiple Choice
Identify C
continental shelf
trench
seamount
abyssal plain
- 46. Multiple Choice
Identify E
continental shelf
island
seamount
guyot
- 47. Multiple Choice
Gyres are
air currents
deep currents
surface currents
ionosphere
- 48. Multiple Choice
This is a diagram of
air currents
deep currents
surface currents
ionosphere
- 49. Multiple Choice
This is a diagram of
air currents
deep currents
surface currents
upwelling
- 50. Multiple ChoicePeople depend on ocean organisms for __________________.mineralsfuelsfood and waterAll of these choices
- 51. Multiple ChoiceFisheries renew themselves naturally each year, but __________________ has caused a shortage of fish in some areas.overfishingcatch limitsglobal warmingaquaculture
- 52. Multiple ChoiceFuels such as ________________ are created naturally over the course of hundreds of millions of years from the remains of dead marine organisms.coalnuclear materialoil and natural gaswood
- 53. Multiple Choice_________________, the farming of salt and freshwater organisms, is increasingly common.AquacultureFisheriesSurf fishing
- 54. Multiple ChoiceAlthough some ocean pollution is the result of natural occurrences, most pollution is related to _______________.global warminghuman activitiesozone depletionupwelling
- 55. Multiple ChoiceFresh water can be produced by removing the salt from ocean water using a process called ______________.salt water cleanupdesalinationwater purificationwastewater treatment
- 56. Multiple ChoiceThe best way to keep the ocean clean is to ______________________.skim trash regularlystop using the ocean as a resourceestablish regulations for safety and environmental regulationsstart a war to take over the ocean as our own resource
- 57. Multiple ChoiceHow does the Gulf Stream affect weather conditions along the eastern coast of the United States?temperatures will decreasetemperatures will increasemore overcast skiesit does not affect the east coast at all
- 58. Multiple ChoiceHow does the Gulf Stream impact hurricane development off the coast of the southeastern United States?colder water from the Gulf Stream increases the speed and intensity of the hurricanecolder water from the Gulf Stream decreases the speed and intensity of the hurricanewarmer water from the Gulf Stream increases the speed and intensity of the hurricanewarmer water from the Gulf Stream decreases the speed and intensity of the hurricane
- 59. Multiple ChoiceWhat happens to a current when it comes in contact with a continent or landmass?It continues over the continentIt stopsIt changes directionIt is absorbed by the land
- 60. Multiple ChoiceWhich lists some effects of El Niño?warmer temperatures and more rainwarmer temperatures and less raincooler temperatures and less rain
- 61. Multiple Choice
Which best describes El Niño?
The water in the Pacific Ocean gets warmer than normal and causes fewer hurricanes to form.
The water in the Pacific Ocean gets colder than normal and causes more hurricanes to form.
The water in the Pacific Ocean gets colder than normal, and the flow of the jet stream is disrupted.
The water in the Pacific Ocean gets warmer than normal, and the flow of the jet stream is disrupted.
- 62. Multiple ChoiceWhich body has the greater effect on Earth's tides?SunSaturnMoonVenus
- 63. Multiple Choice
Wha type of tide would this arrangement of earth-moon-sun create?
full moon tide
new moon tide
neap tide
spring tide
- 64. Multiple ChoiceWhat type of tides would this arrangement of earth-moon-sun create?neap tidespring tidenew moon tidefull moon tide
- 65. Multiple ChoiceHow many low tides and high tides happen in a day?1 low tide, 1 high tide4 low tides, 4 high tides3 low tides, 3 high tides2 low tides, 2 high tides
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