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Ocean Literacy

Total questions: 5

Worksheet time: 3mins

Name
Class
Date
1.
The world's ocean covers approximately ___ percentage of the Earth's surface.
a)
35%
b)
70%
c)
50%
d)
95%
2.
Where does most of the oxygen on Earth come from?
a)
Land plants (tropical rain forest)
b)
ocean plants (phytoplankton)
c)
air
d)
animals
3.
We are dependent on the ocean
a)
True
b)
False
4.
What percentage of marine debris is from land-based sources?
a)
80%
b)
72%
c)
59%
d)
35%
5.
Of the 33 animal phyla that exist, how many occur in the sea?
a)
33
b)
32
c)
28
d)
18

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