Glencoe Earth Science

Chapter 19: Oceanography

Oceanography

1
What is an example of how solid waste can be harmful to the ocean?
A)Solid waste can fill in trenches.
B)Solid waste can dissolve in water.
C)Animals can get tied up in debris.
D)Plants can be poisoned by the waste.
2
Which is NOT a characteristic of plankton?
A)large animals
B)some feed on other plankton
C)drift in currents
D)many are single-celled organisms
3
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)is synthetic
D)comes from humans
4
Estuaries contain __________.
A)saltwater and freshwater
B)freshwater only
C)salt water only
D)polluted water
5
Which is an example of a benthic animal?
A)shark
B)whale
C)jellyfish
D)snail
6
Even if you don't live near an ocean, why is ocean pollution a concern?
A)Every animal's life is tied to the ocean.
B)Ocean pollution can poison rivers.
C)Pollution in the ocean hasn't reached all parts of the ocean yet.
D)Oceans are important tourist areas.
7
When you look at coral on a reef, what are you seeing?
A)mineral deposits from water
B)the hard shells of the coral animals
C)deposits from fishes
D)the actual coral animals themselves
8
Why do tide pools make good habitats?
A)They provide protection from predators.
B)They are freshwater habitats.
C)They are protected from humans.
D)They allow access to the ocean.
9
Where are mineral resources not found in the ocean?
A)abyssal plains
B)surface
C)continental shelf
D)ocean floor
10
What does the ocean floor look like?
A)flowing
B)mountainous
C)smooth
D)sloping
11
Why are laws protecting the ocean difficult to enforce?
A)The laws are unreasonable.
B)No one has made these laws.
C)No country has control of all the oceans.
D)The United States controls all of the oceans.
12
Where does most of the energy come from that fuels ocean life?
A)land plants
B)land animals
C)dissolved gases
D)the Sun
13
Where does the continental shelf begin?
A)at the ocean floor
B)at the mid-ocean ridge
C)at the shoreline
D)at the bottom of the continental slope
14
What occurs at a mid-ocean ridge?
A)underwater mountains
B)a new seafloor
C)the continental slope
D)the continental shelf
15
What is a fish kill?
A)when algae dies
B)when fish die from lack of oxygen
C)when fish kill algae for food
D)when algae grows uncontrolled
16
What is the difference between plankton and nekton?
A)nekton is not single-celled organisms
B)nekton drifts in ocean currents
C)nekton swims instead of drifts
D)plankton are at the bottom of the food chain
17
How deep do abyssal plains go?
A)4,000 to 6,000 km below the ocean surface
B)40 to 60 km below the ocean surface
C)400 to 600 m below the ocean surface
D)4,000 to 6,000 m below the ocean surface
18
Where do most ocean trenches occur?
A)abyssal plains
B)continental shelf
C)mid-ocean ridge
D)convergent boundaries
19
Which is one of the most abundant mineral resource in the ocean?
A)oxygen
B)gold
C)crude oil
D)water
20
Which is not a source of ocean pollution?
A)oil spill
B)sewage
C)smokestacks
D)sediment
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