Ocean Currents And Climate Question Preview (ID: 27192)
Wind And Ocean Currents And There Effect On Climate.
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Cold water currents
a) move water from south of the equator back toward the equator
b) only rotate counter clockwise
c) flow along the equator
d) only flow west to east
What causes wind?
a) differences in air pressure
b) differences in oxygen
c) differences in gravity
d) differences in the thermosphere
What is the main cause of deep-ocean currents?
a) seafloor spreading
b) magnetic fields of Earth
c) volcanic island eruptions
d) water temperature differences
What causes differences in air pressure around the Earth?
a) Warm air rises at the equator and cool air sinks at the poles.
b) Warm air sinks at the equator and cool air rises at the poles.
c) Warm air rises at the equator, and cold air rises at the poles.
d) Cold air rises at the equator, and warm air sinks at the poles.
Surface currents are caused by
a) floods.
b) warm water.
c) the wind.
d) the equator.
As water gets denser, how does it move?
a) expands toward warm water
b) sinks toward the ocean floor
c) gets pushed toward the poles
d) gets pulled up by evaporation
Which currents carry warm water away from the equator?
a) deep currents
b) surface currents
c) evaporation
d) freezing
The Gulf Stream carries warm water to the North Atlantic Ocean, which contributes to
a) a harsh winter in the British Isles.
b) a cold-water surface current that flows to the British Isles.
c) a mild climate for the British Isles.
d) a warm-water surface current that flows along the coast of California.
In the Northern Hemisphere, winds traveling north appear to curve to the east because of the
a) trade winds.
b) convection currents.
c) Coriolis effect.
d) polar easterlies.
Southern California has cooler temperatures than Arizona, which is at the same latitude, but farther inland. What causes this temperature difference?
a) winds formed high in California's mountains
b) the shade provided by the large number of trees in California
c) a cold-water surface current off California's coast
d) a warm-water surface current off California's coast
How do warm water currents affect the coastal areas along which they flow?
a) They create create unusually cool climates for the latitude.
b) They create unusually warm climates for the latitude.
c) They create greater rainfall along the coast.
d) They make the coastal climate cooler than the inland climate.
Cold water currents are most likely to be located at deeper ocean depths than warm water currents because
a) cold water is more dense and sinks
b) cold water has less salt to help it freeze and sink.
c) ocean tides force cold water downward.
d) winds push cold water downward.
Deep currents form when
a) cold air decreases water density.
b) salinity increases.
c) warm air increases water density.
d) the ocean surface freezes and solids from the water underneath are removed.
When does the land heat faster than the surface of the sea?
a) durring the day
b) at night
c) in the summer
d) in the winter
What is it called when warm air rises over the land and wind from the sea moves in to take its place?
a) mountain breeze
b) land breeze
c) valley breeze
d) sea breeze
The energy that drives the wind originally comes from
a) rain.
b) the sun.
c) the ocean.
d) oxygen.
Temperatures over the land at night are lower than those over the water. Which event is caused by this temperature difference?
a) flooding
b) sea breeze
c) land breeze
d) deep water currents
Why does warm air rise and cold air sink?
a) because warm air is less dense than cold air
b) because warm air is denser than cold air
c) because cold air is less dense than warm air
d) because warm air has less pressure than cold air does
By which method does most thermal energy in the atmosphere circulate?
a) conduction
b) convection
c) advection
d) radiation
How is wind created?
a) uneven heating of Earth's surface
b) rotation of Earth on its axis
c) air passing as it revolves around the sun
d) gravity differences around Earth
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