Oceans Test Review 2 Question Preview (ID: 24193)
Continued Content On Oceanography.
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In which direction do global winds blow ocean currents near the equator?
a) from east to west
b) from west to east
c) counterclockwise
d) away from the poles
Trying to roll a ball straight across a turning merry-go-round is a demonstration of what happens in the...
a) movement of global winds across the surface of the ocean.
b) flow of currents and countercurrents at the equator.
c) Coriolis Effect.
d) deflection of a current against a continent.
The curved path of surface currents and global winds are caused by ________.
a) the rotation of the Earth.
b) warm air near the equator.
c) continental deflection.
d) convection currents.
Surface currents are caused by _____________.
a) floods
b) warm water
c) the wind
d) the equator
Ocean currents in the Northern and Southern Hemisphere turn ___________.
a) from west to east.
b) in opposite directions.
c) clockwise.
d) against Earth's rotation.
Which surface current is deflected by the continent of South America?
a) California Current
b) Labrador Current
c) Brazil Current
d) North Equatorial Current
As water gets denser, how does it move?
a) expands toward the warmer water
b) sinks toward the ocean floor
c) gets pushed up toward the poles
d) gets pulled up by evaporation
Compared with surface currents, deep currents are...
a) colder and less dense.
b) warmer and less dense.
c) warmer and more dense.
d) colder and more dense.
When the air above water gets cold, what happens to water molecules?
a) The water molecules evaporate, decreasing the water's density.
b) The molecules slow down and move closer together, increasing the water's density.
c) The water's volume increases as molecules move closer together.
d) The denser water floats on top of the chilled water.
Which event does NOT happen as a result of upwelling?
a) Cold-water currents replace warm-water currents.
b) Surface currents flow away from the shore.
c) The California Current moves water south from the North Pacific.
d) Plants get the minerals they need for photosynthesis.
How do warm-water currents affect the coastal areas along which they flow?
a) They create greater rainfall along the coast.
b) They create unusually cool climates for the latitude.
c) They create unusually warm climates for the latitude.
d) They make the coaster climate cooler than the inland climate.
Which statement describes the negative effects of El Nino?
a) El Nino appears every 2 to 12 years.
b) Rain, flashfloods and mudslides occur in places where there is usually little rain, while wet areas suffer from drought.
c) Sometimes El Nino is followed by La Nina, during which ocean temperatures become cooler.
d) Upwelling along the coast of South America occurs after an El Nino.
It is important for scientists to learn as much as possible about El Nino because the weather pattern...
a) has so far been completely predictable.
b) affects North America more than any other continent.
c) has so many effects on organisms and land.
d) can only be studied out in the open ocean.
The two main parts of a wave are the...
a) swell and whitecap
b) wavelength and wave height
c) crest and trough
d) rise and dip
Tides alternate between _______ and ________ about every six hours on a daily basis.
a) high and low
b) far and wide
c) North and South
d) East and West
Spring tides and Neap tides occur in patterns governed by...
a) changes in the force of the Earth's gravity.
b) the type of ocean currents near where the tides occur.
c) whether the gravity of the sun or moon exerts a stronger pull.
d) the relative positions of the Earth, moon and sun (the phases of the moon).
When do the greatest tidal ranges occur?
a) Spring Tides
b) Neap Tides
c) High Tides
d) Low Tides
Karla is going to search for clams and oysters during low tide. If she knows that low tide is at 3:00 pm today, at what time should she plan to go searching for shellfish tomorrow?
a) 3:00 AM
b) 2:10 PM
c) 3:00 PM
d) 3:50 PM
Looking into the night sky, you see a full moon. What would be occuring at this time?
a) Spring Tide
b) Neap Tide
c) Tital Range
d) High Tide
Waves carry ___________ transferred from the ___________ blowing across the ocean.
a) energy, heat
b) energy, hurricanes
c) heat, wind
d) energy, wind
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