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- 1. Multiple Choice
Surface currents are caused byFloodsWarm waterSalty waterWind - 2. Multiple ChoiceThe density of ocean water increases when itjoins the Gulf Stream.gets colder.gets warmer.turns to ice
- 3. Multiple ChoiceWhich process increases the salinity of ocean water?The Coriolis EffectConvection currentsEvaporationContinental deflection
- 4. Multiple ChoiceAs water gets denser, how does it move?expands toward warmer watersinks toward the ocean floorgets pushed toward the polesgets pulled up by evaporation
- 5. Multiple ChoiceWhich currents carry warm water away from the equator?Deep currentsSurface currentsEvaporation currentsFreezing currents
- 6. Multiple ChoiceIn which direction do global winds blow ocean currents near the equator?from east to westfrom west to eastfrom north to southfrom south to north
- 7. Multiple ChoiceCompared with surface currents, deep currents arecolder and less dense.warmer and less dense.warmer and denser.colder and denser.
- 8. Multiple ChoiceSurface ocean currents such as Gulf Streammove warm water from higher latitudes to lower latitudes.transport many times more water than all the rivers in the world.are formed in parts of the ocean where water density is great.move in straight paths across the oceans.
- 9. Multiple ChoiceWhich of the following causes water from deep currents to rise to the surface to replace warm currents?the flow of warm currents from the equator toward the polesfreezing of the surface of the waterincreased salinity due to evaporationsqueezing solids out of the ice down into the water below
- 10. Multiple ChoiceHow do warm-water currents affect the coastal areas along which they flow?They create greater rainfall along the coastThey create unusually cool climates for the latitude.They create unusually warm climates for the latitude.They make the coastal climate cooler than the inland climate.
- 11. Multiple ChoiceHow do changes in the circulation of ocean currents affect climate?by changing the atmosphereby moving water clockwiseby increasing salinityby changing the density
- 12. Multiple ChoiceHow does the Coriolis effect make ocean currents appear to move?up and downin a curved pathtoward the landback and forth
- 13. Multiple ChoiceWhat happens to an ocean current when it hits a continent?it changes directionit moves toward the polesit moves toward the equatorit speeds up
- 14. Multiple ChoiceHow are deep currents different from surface currents?They are warmer and faster.They are caused by winds.They are denser and slower.They are warmer and denser
- 15. Multiple ChoiceWhat happens to the water that is left behind after evaporation?It gets hotterIt gets less densdeIt moves fasterIts salinity increases
- 16. Multiple ChoiceWhat force makes cold water sink toward the ocean floor?global windsthe Sungravitythe Coriolis Effect
- 17. Multiple ChoiceIf ocean currents have changed their circulation patterns, you can conclude thatpatterns of wind circulation have also changed.the water is colder and denser than usual.the rate of evaporation has increased.the climate will be milder than usual.
- 18. Multiple ChoiceWhat happens because El Niño damages a coral reef?The ocean water gets warmer.Fish that depend on the reef die.The ocean water gets cooler.The reef supports more diversity of life.
- 19. Multiple ChoiceWhat causes a gyre to curve as it flows away from the equator?EvaporationSalinityThe Coriolis EffectAll of the above
- 20. Multiple ChoiceIn what direction do gyres move in the northern hemisphere?CounterclockwiseFrom south to northClockwiseFrom north to south
- 21. Multiple ChoiceWhat causes surface ocean currents?Temperature and salinityWind and rainTemperature and the Coriolis EffectTemperature and wind
- 22. Multiple ChoiceWhich of the following does NOT affect the density of seawater?SalinityTemperatureEvaporationwaves
- 23. Multiple ChoiceIf your latitude is close to 90 degrees North, you live in which zone?Polar ZoneTemperate zoneTropical zoneEnd zone
- 24. Multiple ChoiceEl Nino occurs when the tropical ocean waters are warmer in which ocean?AtlanticIndianPacificArctic
- 25. Multiple ChoiceWhat is the name of a climate event that occurs every two to seven years in the Pacific Ocean.La NinaEl NinaLa NinoEl Nino
- 26. Multiple ChoiceWhat is the name of the largest and most powerful surface current in the North Atlantic Ocean?Gulf of MexicoPacific SteamGulf StreamAtlantic Ocean steam
- 27. Multiple ChoiceTemperature affects this greatlycolordensitychlorinethermocline
- 28. Multiple ChoiceSurface currents are a result ofGlobal Wind PatternsEarth's RotationDensityAll of the above
- 29. Multiple ChoiceDeep Ocean currents are a result ofGlobal Wind PatternsEarth's RotationDensityAll of the above
- 30. Multiple ChoiceThe Coriolis Effect is caused byEarth rotating around the sunEarth rotating on its axisThe tidesGravity
- 31. Multiple ChoiceAs you go deeper in the ocean, the water is colder and less salty.TrueFalse
- 32. 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
- 33. Multiple ChoiceWhat type of water is traveling through the currents on the western side of a gyre?warm water from the poleswarm water from the equatorcold water from the polescold water from the equator
- 34. Multiple ChoiceWhat is the large circular paths of the surface currents in each ocean basin?Coriolis EffectEkman spiralGyreThermohaline Circulation
- 35. Multiple ChoiceWhat is the tendency of fluids to deflect (bend) either to the right or left rather than traveling in a straight path as Earth spins on its axis?Coriolis EffectEkman spiralGyreThermohaline circulation
- 36. Multiple ChoiceWhat factors affect surface currents?Global winds, TidesContinental deflection, Gravitational pull from moonGlobal winds, Coriolis effect, continental deflectionTides, gravity from sun, Global winds
- 37. Multiple ChoiceWhat factors create deep ocean currents?Increase in salinity; increase in temperatureDecrease in salinity; decrease in temperatureIncrease in salinity; decrease in temperatureDecrease in salinity; increase in temperature
- 38. Multiple ChoiceStreamlike movements of water at or near the surface of the ocean are called ____.Deep Ocean CurrentsJet Stream CurrentsSurface CurrentsConvection Currents
- 39. Multiple ChoiceThe Coriolis effect causes ___________.global winds and surface currents to move in a curved path instead of a straight linecontinental deflectionthe Earth to rotate on its axisglobal winds and deep ocean currents to move in a curved path instead of a straight line.
- 40. Multiple ChoiceWhat does the Coriolis effect have on surface currents in the northern and southern hemispheres?in general, there is no real effectin general, surface currents will flow counterclockwise in the northern hemisphere and clockwise in the southern hemisphere.in general, surface currents will flow clockwise in the northern hemisphere and counterclockwise in the southern hemisphere.in general, they flow in the same direction
- 41. Multiple ChoiceExplain the role of density in the movement of deep currents.Cold, high salinity deep current water is less dense than warm, low salinity surface current water. As warm water sinks, cold water will move in to take its place, creating a circular movement called a convection current.Cold, high salinity deep current water is more dense than warm, low salinity surface current water. As warm water rises, cold water will move in to take its place, creating a circular movement called a convection current.
- 42. Multiple ChoiceThe amount of matter in a given space is called ___.volumemassdesitypressure
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