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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
Swimming fish
C
Wind
D
Salinity differences
2) How many years does it take water to go through the Great Ocean conveyor belt?
A
10000
B
100
C
1000
D
10
3) In what direction does the Gulf Stream circulate?
A
Up and down
B
Random
C
Counterclockwise
D
Clockwise
4) How does upwelling 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
5) What is the deepest place in the Pacific ocean?
A
Mariana trench
B
Peru trench
C
Dead sea
D
Grand canyon
6) This is how currents move in the southern hemisphere
A
Up and down
B
Random
C
Counterclockwise
D
Clockwise
7) This uses sound waves to map the ocean floor?
A
sonar
B
soundings
C
radar
D
GPS
8) Which three things are transported by the Great Ocean Conveyor Belt?
A
Oxygen, nutrients, heat
B
Nutrients, heat, salt
C
Heat, oxygen, ships
D
Oxygen, nutrients, wind
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
temperature and sunlight
C
salinity and temperature
D
windspeed and salinity
11) This sea floor feature was once above water during the ice age
A
mid ocean ridge
B
continental slope
C
continental shelf
D
trench
12) How is Iceland affected by the gulf stream
A
It causes Icelands volcanic activity
B
It gives Iceland its cold, icy climate
C
It does not affect Iceland
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
MRI mapping
C
radar
D
sonar
14) Pressure and salinity both do this as you go down in depth in the ocean
A
Stay the same
B
Decrease
C
Increase
D
Go up and down
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
Temperate zones
B
Polar regions
C
North Pacific
D
Tropics
17) The place where the temperature drops rapidly is called the
A
Thermocline
B
Halocline
C
Heliocline
D
Heatcline
18) The place where the salinity drops rapidly is called the
A
Halocline
B
Heliocline
C
Autocline
D
Thermocline
19) Who first mapped the Gulf Stream
A
George Washington
B
Jaque Cousteau
C
Thomas Jefferson
D
Ben Franklin
*select an answer for all questions
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