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Oceans And Currents
Test Description: Motion in the ocean
Instructions: Answer all questions to get your test result.
1) What causes surface currents?
A
Density differences
B
Wind
C
Swimming fish
D
Salinity differences
2) How many years does it take water to go through the Great Ocean conveyor belt?
A
1000
B
100
C
10
D
10000
3) In what direction does the Gulf Stream circulate?
A
Random
B
Up and down
C
Clockwise
D
Counterclockwise
4) How does upwelling help the ocean?
A
Brings oxygen down from the surface
B
Brings nutrients up from the bottom
C
Brings nutrients down from the surface
D
Brings oxygen up from the bottom
5) What is the deepest place in the Pacific ocean?
A
Dead sea
B
Mariana trench
C
Grand canyon
D
Peru trench
6) This is how currents move in the southern hemisphere
A
Up and down
B
Clockwise
C
Counterclockwise
D
Random
7) This uses sound waves to map the ocean floor?
A
GPS
B
soundings
C
sonar
D
radar
8) Which three things are transported by the Great Ocean Conveyor Belt?
A
Nutrients, heat, salt
B
Oxygen, nutrients, wind
C
Oxygen, nutrients, heat
D
Heat, oxygen, ships
9) How does downwelling help the ocean?
A
Brings nutrients down from the surface
B
Brings oxygen down from the surface
C
Brings nutrients up from the bottom
D
Brings oxygen up from the bottom
10) Thermohaline currents are created by differences in
A
salinity and temperature
B
windspeed and salinity
C
temperature and sunlight
D
sunlight and pressure
11) This sea floor feature was once above water during the ice age
A
trench
B
mid ocean ridge
C
continental slope
D
continental shelf
12) How is Iceland affected by the gulf stream
A
It causes Icelands volcanic activity
B
It does not affect Iceland
C
It gives Iceland its cold, icy climate
D
It gives Iceland a warmer climate than it should have
13) This new technology gives a high definition map of the sea floor
A
GPS sattelites
B
sonar
C
radar
D
MRI mapping
14) Pressure and salinity both do this as you go down in depth in the ocean
A
Increase
B
Go up and down
C
Decrease
D
Stay the same
15) These two oceans are growing
A
Atlantic and Arctic
B
Pacific and Atlantic
C
Indian and Pacific
D
Atlantic and Indian
16) The oceans are saltiest in the
A
Tropics
B
Temperate zones
C
Polar regions
D
North Pacific
17) The place where the temperature drops rapidly is called the
A
Halocline
B
Heatcline
C
Heliocline
D
Thermocline
18) The place where the salinity drops rapidly is called the
A
Thermocline
B
Autocline
C
Heliocline
D
Halocline
19) Who first mapped the Gulf Stream
A
George Washington
B
Thomas Jefferson
C
Jaque Cousteau
D
Ben Franklin
*select an answer for all questions
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