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1. 
The oceans cover about ____ percent of the Earth.
A.
100
B.
25
C.
75
D.
50
2. 
What carries warm water to the poles?
A.
currents
B.
tides
C.
waves
D.
rivers
3. 
Which best describes rivers, streams, and lakes?
A.
surface salt water
B.
fresh groundwater
C.
surface fresh water
D.
salty groundwater
4. 
Dew forms during which part of the water cycle?
A.
condensation
B.
precipitation
C.
evaporation
D.
runoff
5. 
Which ocean is the largest and the deepest?
A.
Arctic Ocean
B.
Indian Ocean
C.
Pacific Ocean
D.
Atlantic Ocean
6. 
Where on the Earth would the ocean have more salinity?
A.
The Poles
B.
The Equator
7. 
Where does the water cycle get its energy from?
A.
The sun
B.
the wind
C.
the rotation of the earth
D.
the change in the seasons
8. 
When water vapor freezes directly into ice without first becoming a liquid the result is called frost.
A.
true
B.
false
9. 
The water cycle has many paths that can be taken.
A.
true
B.
false
10. 
When ocean water evaporates salt is left behind.
A.
true
B.
false
11. 
Hydrosphere is another word for cool looking earth
A.
true
B.
false
12. 
Rivers deliver salt to the oceans.
A.
true
B.
false
13. 
It is possible to take salt out of ocean water to make it drinkable.
A.
true
B.
false
14. 
The temperature of the ocean is the same all over the earth.
A.
true
B.
false
15. 
Runoff is water moving downhill.
A.
true
B.
fakse