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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
move water from south of the equator back toward the equator
C
only flow west to east
D
flow along the equator
2) What causes wind?
A
differences in air pressure
B
differences in gravity
C
differences in the thermosphere
D
differences in oxygen
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 sinks at the equator and cool air rises at the poles.
B
Warm air rises at the equator, and cold air rises at the poles.
C
Cold air rises at the equator, and warm air sinks at the poles.
D
Warm air rises at the equator and cool air sinks at the poles.
5) Surface currents are caused by
A
the wind.
B
the equator.
C
warm water.
D
floods.
6) As water gets denser, how does it move?
A
expands toward warm water
B
gets pulled up by evaporation
C
sinks toward the ocean floor
D
gets pushed toward the poles
7) Which currents carry warm water away from the equator?
A
deep currents
B
evaporation
C
freezing
D
surface currents
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 cold-water surface current that flows to the British Isles.
C
a harsh winter in 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
polar easterlies.
C
trade winds.
D
convection currents.
10) 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 warm-water surface current off California's coast
D
a cold-water surface current off California's coast
11) 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 warm climates for the latitude.
C
They create create unusually cool climates for the latitude.
D
They make the coastal climate cooler than the inland climate.
12) 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
winds push cold water downward.
C
cold water has less salt to help it freeze and sink.
D
ocean tides force cold water downward.
13) Deep currents form when
A
the ocean surface freezes and solids from the water underneath are removed.
B
salinity increases.
C
cold air decreases water density.
D
warm air increases water density.
14) When does the land heat faster than the surface of the sea?
A
durring the day
B
in the summer
C
at night
D
in the winter
15) 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
16) The energy that drives the wind originally comes from
A
rain.
B
oxygen.
C
the sun.
D
the ocean.
17) Temperatures over the land at night are lower than those over the water. Which event is caused by this temperature difference?
A
sea breeze
B
deep water currents
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 cold air is less dense than warm air
C
because warm air is less dense than cold 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
advection
B
conduction
C
radiation
D
convection
20) How is wind created?
A
air passing as it revolves around the sun
B
uneven heating of Earth's surface
C
rotation of Earth on its axis
D
gravity differences around Earth
*select an answer for all questions
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