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