Name: 
 

Earth Science – Heat Driven Convections on Earth Lesson 5-4 Practice Exercise



True/False
Indicate whether the statement is true or false.
 

 1. 

The salinity of ocean water in any particular area is primarily the balance between evaporation and precipitation.
 

 2. 

When ice forms on the surface of the ocean, it does not include the salts.  This makes the ocean below the ice more salty.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 3. 

The Deep Zone of the ocean starts at about
a.
300 meters
b.
500 meters
c.
800 meters
d.
1000 meters
 

 4. 

Which of the following is NOT one of the three main types of currents of the oceans.
a.
rip tides
b.
upwellings
c.
surface currents
d.
density currents
 

 5. 

Earthquakes can cause mammoth waves called
a.
tidal waves
b.
tsunamis
c.
surfing waves
d.
upwelling waves
 



 
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