Environmental Science Quiz 3-3
 
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Environmental Science Quiz 3-3

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 
 
Section 3  -  The Hydrosphere and Biosphere
 

 1. 

The average salinity of seawater by weight is
a.
0.35 percent.
b.
3.5 percent.
c.
35.0 percent.
d.
None of the above
 

 2. 

With respect to energy, Earth is a(n)
a.
layered system.
b.
integrated system.
c.
open system.
d.
closed system.
 

 3. 

Where do organisms obtain the energy they need?
a.
biosphere
b.
hydrosphere
c.
atmosphere
d.
lithosphere
 

 4. 

What is the second largest ocean on Earth?
a.
Arctic Ocean
b.
Indian Ocean
c.
Pacific Ocean
d.
Atlantic Ocean
 

 5. 

Deep currents flow along the
a.
ocean floor.
b.
ocean surface.
c.
thermocline.
d.
halocline.
 

Matching
 
 
Section 3  -  The Hydrosphere and Biosphere

In the space provided, write the letter of the description that best matches the term or phrase.
a.
groundwater
d.
sunlight
b.
river system
e.
surface zone
c.
phytoplankton
 

 6. 

water used for drinking and agriculture
 

 7. 

the warm, top layer of ocean water
 

 8. 

what green plants need to produce their food
 

 9. 

a network of streams that drains an area of land
 

 10. 

tiny, free-floating, marine algae
 



 
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