Ocean Water Answers

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1
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Which is one quality of the entire open-ocean zone?

f
few nutrients
l
low pressure
a
ample sunlight
v
varying salinity
2
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Where does the salt in oceans come from?

G
Glaciers contain salt and melt into the ocean.
P
Pollution from trucks adds salt into the ocean.
M
Minerals from the land are washed into the ocean.
D
Decomposing fish and plants in the ocean increase salinity.
3

Which factor affects the temperature of ocean water?

d
depth
s
salinity
n
number of organisms
a
amount of dissolved gases
5

What happens when water’s salinity increases?

M
Mass decreases.
F
Freezing point decreases.
B
Buoyancy of objects decreases.
T
The amount of dissolved minerals decreases.
6

Which percentage of Earth’s oceans is dissolved salts?

3
3.5 percent
3
30.6 percent
5
55 percent
9
96.5 percent
8

Which is one feature of the ocean floor found in the open ocean?

t
trench
a
abyssal plain
c
continental slope
c
continental shelf
9

Which is one of the ecosystems found in intertidal zones?

e
estuaries
t
trenches
c
coral reefs
k
kelp forests
10

Which ocean is on the eastern coast of North and South America?

A
Arctic Ocean
I
Indian Ocean
P
Pacific Ocean
A
Atlantic Ocean

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