The Atmosphere-Ocean System 13 questions

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Question 1

Which of the following best describes the ocean surface layer?


A. zone of calm, slow-moving water
 
B.      zone of turbulent mixing
 
C.      zone of very dense, cool water
 
D.      zone of low-salinity, dense water





 

Question 2

Which statement best describes the difference between ocean surface currents and deep ocean currents?                      

      A. Surface currents are cooler than deep currents because of the influence of wind.
 
B.      Surface currents are driven by wind; deep currents are driven by density differences.
 
C.      Surface currents are slow-moving; deep currents are fast-moving.
 
D.      Surface currents are denser than deep currents.





 

Question 3

 Flat areas that occupy the deepest parts of the ocean floor are called the                        
A.      abyssal plains
 
B.      guyots
 
C.      oceanic trenches
 
D.      continental shelves


Question 4

Where does most of the deep ocean water come from?

A.            sinks from the North Atlantic

B.            input from rivers and streams on the continents

C.            upwelling from the Indian and Pacific Oceans

D.            melting of polar ice sheets


 

Question 5

    What effect might the introduction of more freshwater into the North Atlantic have on global ocean circulation?

      A.      speed it up
 
B.      stop it completely
 
C.      block it and slow it down
 
D.      make it flow in the opposite direction





 

Question 6

    What happens during El Nino years when coastal upwelling off the coast of South America is disrupted?

      A.     plankton populations flourish and fishing is very productive
 
B.      plankton populations stay fixed but fish populations boom, creating imbalance in the ecosystem
 
C.      plankton populations die off and fishers are put out of work
 



Question 7

    From which of the following do clouds form?

      A.      moisture evaporated from Earth
 
B.      moisture from winds
 
C.      water droplets from the upper atmosphere
 
D.      air pollution





 

Question 8

    As the Gulf Stream travels north, it cools the air above it, making the climate of England cooler than it would be without the Gulf Stream.

    True
 
    False
 

Question 9

    Tundra is found in which climate zone?                             

      A.      tropical
 
B.      temperate
 
C.      polar
 
D.      Mediterranean
 




Question 10

    Which of the following often takes place during El Nino?          

      A.      drought in the western Pacific
 
B.      high rainfall in the western Pacific
 
C.      strengthening of trade winds in the south Pacific
 
D.      ocean cooling

Question 11   

 Large mountains can block the passage of moist air, making one side of the mountain receive more rain than the other. 

    True 

         False
 

Question 12

Which layer of the atmosphere is very thick and is characterized by charged particles called ions?
A.      thermosphere
 
B.      troposphere
 
C.      stratosphere
 
D.      mesosphere
 

Question 13 

In air the elements lead, cadmium, mercury and copper are examples of         

     A.      radioactive pollutants 

B.      toxic metals 

C.      VOCs 

D.      CFCs














 
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