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- 1. Multiple Choice
Which best explains the cause of currents that move north from the equator?
Cold water at the poles rises and moves toward the tropics.
Warm water near the coastline rises and moves toward the poles
Cold water deep in the ocean rises and moves toward the tropics
Warm water at the equator rises and moves toward the poles.
- 2. Multiple Choice
Which of the following the main reason water at the surface of the ocean is warmer than water at the bottom of the ocean?
Water at the bottom of the ocean contains more dissolved solids
Water at the surface of the ocean absorbs more energy from the sun
Friction is created by fast moving currents at the surface of the ocean
Wave action transfers heat from the bottom of the ocean to the surface.
- 3. Multiple Choice
The Gulf Stream in the Northern Hemisphere and the Brazilian Current in the Southern Hemisphere move from the equator towards the poles.
Compared to inland areas at the same latitude, the coastal areas bordering these currents will
be warmer
be more dry
be cooler
have more fog
- 4. Multiple Choice
The Gulf Stream is warm water current that begins in the Gulf of Mexico. A diagram of the Gulf Stream is shown below.
Which best describes the movement of the Gulf Stream?
Cold currents carry cold water from the polar zones toward the equator
Warm currents carry warm water from the tropics toward the poles
Warm currents carry cold water from the tropics toward the poles.
Cold currents carry warm water from the polar zones toward the equator.
- 5. Multiple Choice
Southern California has cooler temperatures than Arizona, which is at the same latitude. What causes this temperature difference?
a cold-water surface current off of California’s coast
winds that form high in the California mountains
the shade provided by the large number of trees in California
a large deep water current running along California’s coast
- 6. Multiple Choice
The average temperature of City Y is warmer than the average temperature of City X during the summer.
Using the map shown above, which statement best explains the hotter weather in City Y?
Warm wind from the land keep the temperature cool all year long
The ocean current warms the air along the coastline
The ocean always floods City Y, keeping it near 75F all year
City Y is located south of City X
- 7. Multiple Choice
Springfield, Missouri, and San Francisco, California , are at similar latitudes, but they have very different climates. Springfield has very hot summers and cold winters, while San Francisco has about the sme temperaturs all year. What is the most likely reason the two citis have such different climates.
the amount of sunlight on each city
the distance of each city from an ocean
the elevation above sea level of each city
the distance of each city form the equator
- 8. Multiple Choice
Which of the following best describes how the Gulf Stream affects the weather long the east coast?
It makes the air less humid and brings less rain to the area
It makes the temperature cooler and the winds stronger
It makes the wind stronger and brings less rain to the area.
It makes the air temperature warmer and the air more humid
- 9. Multiple Choice
Why are ocean currents important to coastal regions?
They produce high and low tides along coastal regions
They can warm or cool the air temperatures along coastal regions
They move vertically pushing warm water and nutrients to the surface along coastal regions.
They increase the rate of precipitation as cold water moves along coastal regions
- 10. Multiple Choice
Which of the currents most affects the climate of the east coast of the United States?
Gulf Stream
Labrador Current
North Atlantic Drift
North Equatorial
- 11. Multiple Choice
What energy source formed this convection current in the atmosphere
gravity from the moon
heat from the sun
rotation of the Earth
action of tides
- 12. Multiple Choice
Compared with surface currents, deep currents are
warmer and denser
colder and more denser
warmer and less denser
- 13. Multiple Choice
The following is a process that takes place in the atmosphere.
Solar energy--> warm air rises --> air cools in upper atmosphere and sinks--> air currents
This process can best be identified as:
wind formation through convection
cloud formation through radiation
precipitation runoff through conduction
lightning through static electricity
- 14. Multiple Choice
Compared to deep ocean currents, surface currents tend to be
saltier
denser
warmer
calmer
- 15. Multiple Choice
What is the factor that drives the currents to continue to circulate?
continental deflection
the roation of the Earth
the gravity of the moon
differences in density
- 16. Multiple Choice
Which is an example of convection?
Cool air rising and warm air sinking
Warm air rising and cool air sinking
The sun heating Earth
Burning your feet on hot pavement
- 17. Multiple Choice
When the air above the water gets cold, what happens to the water molecules?
The molecules slow down and move closer together, increasing the water’s density.
The water’s volume increases as molecules move closer together.
The denser water floats on top of the chilled water.
The water molecules evaporate, decreasing the water’s density
- 18. Multiple Choice
The diagram below shows the rain shadow effect on coastal mountain range.
Why do rain shadows exist on the leeward side of mountain ranges?
The air that descends on the leeward side of the mountain is warm and dry.
It is too far from an ocean to hold moisture long enough to drop it in the area of a rain shadow
Soils are too thing in these regions to hold moisture, so none is available for evaporation
These areas are generally very cold and all water is frozen and not available for evaporation
- 19. Multiple Choice
Select two statements that explain why cold water currents are most likely to be located deeper in the ocean than warm water currents.
winds push the cold water down
cold water is more dense and sinks
cold water is less dense due to higher salinity
ocean tides force cold water downward
cold water is more dense due to higher salinity
- 20. Multiple Choice
What are the major controlling factors for deep ocean currents? Select 2 choices.
salinity
wind
pressure
temperature
continental deflection
- 21. Multiple Choice
Which best describes what happens in a convection current?
warm air sinks, and cold air rises
cold and warm air sinks
warm air rises and cold air sinks
cold and warm air rises
- 22. Multiple Choice
In what direction will air currents most likely move
From the land towards the sea
straight down over land
straight up above the sea
from the sea toward the land
- 23. Multiple Choice
Imagine area A, which has high pressure, is next to area B , which has low pressure. Which is most likely to occur?
The wind will blow towards area A
The wind will blow towards area B
The wind will stop blowing
The wind will blow from both area A and B
- 24. Multiple Choice
Which diagram best models the movement of coastal air during the afternoon?
A
B
C
D
- 25. Multiple Choice
Upward and downward currents of air which result fro the uneven heating of the air are called
Convection currents
Radiation currents
Winds
Conduction currents
- 26. Multiple Choice
Land breezes occur during the_____ and produce wind moving _______
night/in over the land
day/out over the water
day/in over the land
night/out over the water
- 27. Multiple Choice
What is the driving force for surface ocean currents?
global winds
density layering
moons gravity
salt concentration
- 28. Multiple Choice
Why does warm air rise and cold air sink?
because warm air is denser than cold air
because warn air is less dense than cold air
because cold air is less dense than warm air
because warm has less pressure than cold air does
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