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Ocean Currents And Climate
Test Description: Wind and Ocean currents and there effect on climate
Instructions: Answer all questions to get your test result.
1) Cold water currents
A
only rotate counter clockwise
B
flow along the equator
C
only flow west to east
D
move water from south of the equator back toward the equator
2) What causes wind?
A
differences in oxygen
B
differences in air pressure
C
differences in gravity
D
differences in the thermosphere
3) What is the main cause of deep-ocean currents?
A
water temperature differences
B
seafloor spreading
C
magnetic fields of Earth
D
volcanic island eruptions
4) 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.
5) Surface currents are caused by
A
the equator.
B
floods.
C
the wind.
D
warm water.
6) As water gets denser, how does it move?
A
gets pulled up by evaporation
B
sinks toward the ocean floor
C
gets pushed toward the poles
D
expands toward warm water
7) Which currents carry warm water away from the equator?
A
surface currents
B
deep currents
C
freezing
D
evaporation
8) The Gulf Stream carries warm water to the North Atlantic Ocean, which contributes to
A
a mild climate for the British Isles.
B
a harsh winter in the British Isles.
C
a cold-water surface current that flows to the British Isles.
D
a warm-water surface current that flows along the coast of California.
9) In the Northern Hemisphere, winds traveling north appear to curve to the east because of the
A
Coriolis effect.
B
convection currents.
C
polar easterlies.
D
trade winds.
10) Southern California has cooler temperatures than Arizona, which is at the same latitude, but farther inland. What causes this temperature difference?
A
a warm-water surface current off California's coast
B
a cold-water surface current off California's coast
C
winds formed high in California's mountains
D
the shade provided by the large number of trees in California
11) How do warm water currents affect the coastal areas along which they flow?
A
They make the coastal climate cooler than the inland climate.
B
They create create unusually cool climates for the latitude.
C
They create unusually warm climates for the latitude.
D
They create greater rainfall along the coast.
12) Cold water currents are most likely to be located at deeper ocean depths than warm water currents because
A
cold water has less salt to help it freeze and sink.
B
cold water is more dense and sinks
C
winds push cold water downward.
D
ocean tides force cold water downward.
13) Deep currents form when
A
salinity increases.
B
warm air increases water density.
C
the ocean surface freezes and solids from the water underneath are removed.
D
cold air decreases water density.
14) When does the land heat faster than the surface of the sea?
A
durring the day
B
in the winter
C
at night
D
in the summer
15) What is it called when warm air rises over the land and wind from the sea moves in to take its place?
A
sea breeze
B
valley breeze
C
mountain breeze
D
land breeze
16) The energy that drives the wind originally comes from
A
the ocean.
B
rain.
C
oxygen.
D
the sun.
17) Temperatures over the land at night are lower than those over the water. Which event is caused by this temperature difference?
A
deep water currents
B
sea breeze
C
land breeze
D
flooding
18) Why does warm air rise and cold air sink?
A
because warm air is denser than cold air
B
because warm air is less dense than cold air
C
because cold air is less dense than warm air
D
because warm air has less pressure than cold air does
19) By which method does most thermal energy in the atmosphere circulate?
A
convection
B
advection
C
radiation
D
conduction
20) How is wind created?
A
uneven heating of Earth's surface
B
gravity differences around Earth
C
rotation of Earth on its axis
D
air passing as it revolves around the sun
*select an answer for all questions
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