Glencoe Earth Science

Chapter 18: Ocean Motion

Section 1 Self-Check Quiz-Eng.

1
Ocean water might have come from all of the following EXCEPT _________.
A)volcanic eruptions
B)land basins
C)torrential rains
D)water vapor
2
Which gas enters the ocean by photosynthesis?
A)carbon dioxide
B)oxygen
C)hydrogen
D)nitrogen
3
Which gas that is found in ocean water does NOT come from the atmosphere?
A)oxygen
B)carbon dioxide
C)nitrogen
D)chlorine
4
Dissolved salts and gases can enter seawater by all of the following EXCEPT __________.
A)organism respiration
B)desalination
C)ions from dissolved rocks
D)ions from erupting volcanoes
5
Low areas on Earth that filled with water to form oceans are called __________.
A)salinity
B)basins
C)lowlands
D)valleys
6
Salinity measures the amount of __________ dissolved in seawater.
A)hydrogen
B)oxygen
C)sodium
D)salt
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