Earth Science: The Water Planet, Book H

Chapter 5: Oceanography

Oceanography

1
When you look at coral on a reef, what are you seeing?
A)deposits from fishes
B)the hard shells of the coral animals
C)mineral deposits from water
D)the actual coral animals themselves
2
Even if you don't live near an ocean, why is ocean pollution a concern?
A)Oceans are important tourist areas.
B)Every animal's life is tied to the ocean.
C)Pollution in the ocean hasn't reached all parts of the ocean yet.
D)Ocean pollution can poison rivers.
3
Which is not a source of ocean pollution?
A)smokestacks
B)sediment
C)oil spill
D)sewage
4
Estuaries contain __________.
A)freshwater only
B)saltwater and freshwater
C)salt water only
D)polluted water
5
A pollutant is any substance that __________.
A)comes from nature but is harmful to the environment
B)damages organisms and interferes with life processes
C)comes from humans
D)is synthetic
6
Where do most ocean trenches occur?
A)abyssal plains
B)convergent boundaries
C)mid-ocean ridge
D)continental shelf
7
What is a fish kill?
A)when fish die from lack of oxygen
B)when fish kill algae for food
C)when algae grows uncontrolled
D)when algae dies
8
What process deposits materials in the deep ocean?
A)precipitation
B)dissolved gases
C)underground streams
D)volcanic deposits
9
Which is an example of a benthic animal?
A)jellyfish
B)snail
C)shark
D)whale
10
What does the ocean floor look like?
A)smooth
B)flowing
C)sloping
D)mountainous
11
What occurs at a mid-ocean ridge?
A)the continental shelf
B)underwater mountains
C)the continental slope
D)a new seafloor
12
Where does the continental shelf begin?
A)at the bottom of the continental slope
B)at the shoreline
C)at the ocean floor
D)at the mid-ocean ridge
13
What must animals that live on a beach adapt to?
A)changing shape of the beach
B)new plants growing on the beach
C)dry habitats
D)deep water
14
What elements are used to make food by chemosynthesis?
A)sulfur and nitrogen
B)sulfur and oxygen
C)oxygen and carbon dioxide
D)oxygen and nitrogen
15
What is an example of how solid waste can be harmful to the ocean?
A)Solid waste can dissolve in water.
B)Plants can be poisoned by the waste.
C)Animals can get tied up in debris.
D)Solid waste can fill in trenches.
16
How deep do abyssal plains go?
A)400 to 600 m below the ocean surface
B)4,000 to 6,000 km below the ocean surface
C)4,000 to 6,000 m below the ocean surface
D)40 to 60 km below the ocean surface
17
Where are mineral resources not found in the ocean?
A)ocean floor
B)abyssal plains
C)continental shelf
D)surface
18
Which is one of the most abundant mineral resource in the ocean?
A)oxygen
B)water
C)gold
D)crude oil
19
Why do tide pools make good habitats?
A)They allow access to the ocean.
B)They provide protection from predators.
C)They are freshwater habitats.
D)They are protected from humans.
20
Which is longer, the continental shelf or the continental slope?
A)continental slope
B)continental shelf
C)They are the same length.
D)Their lengths differ.
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