Oceanography
Practice Test
1.
A pollutant is any substance that __________.
a.
comes from nature but is harmful to the environment
b.
comes from humans
c.
damages organisms and interferes with life processes
d.
is synthetic
Hint
2.
Where are mineral resources not found in the ocean?
a.
ocean floor
b.
continental shelf
c.
surface
d.
abyssal plains
Hint
3.
What is an example of how solid waste can be harmful to the ocean?
a.
Solid waste can dissolve in water.
b.
Animals can get tied up in debris.
c.
Plants can be poisoned by the waste.
d.
Solid waste can fill in trenches.
Hint
4.
How deep do abyssal plains go?
a.
400 to 600 m below the ocean surface
b.
40 to 60 km below the ocean surface
c.
4,000 to 6,000 km below the ocean surface
d.
4,000 to 6,000 m below the ocean surface
Hint
5.
What must animals that live on a beach adapt to?
a.
new plants growing on the beach
b.
changing shape of the beach
c.
deep water
d.
dry habitats
Hint
6.
Which is longer, the continental shelf or the continental slope?
a.
They are the same length.
b.
continental slope
c.
Their lengths differ.
d.
continental shelf
Hint
7.
What elements are used to make food by chemosynthesis?
a.
sulfur and nitrogen
b.
oxygen and carbon dioxide
c.
oxygen and nitrogen
d.
sulfur and oxygen
Hint
8.
Where do most ocean trenches occur?
a.
mid-ocean ridge
b.
convergent boundaries
c.
abyssal plains
d.
continental shelf
Hint
9.
Which is an example of a benthic animal?
a.
whale
b.
snail
c.
shark
d.
jellyfish
Hint
10.
Even if you don't live near an ocean, why is ocean pollution a concern?
a.
Pollution in the ocean hasn't reached all parts of the ocean yet.
b.
Ocean pollution can poison rivers.
c.
Every animal's life is tied to the ocean.
d.
Oceans are important tourist areas.
Hint
11.
Estuaries contain __________.
a.
polluted water
b.
freshwater only
c.
salt water only
d.
saltwater and freshwater
Hint
12.
What is a fish kill?
a.
when fish kill algae for food
b.
when algae grows uncontrolled
c.
when algae dies
d.
when fish die from lack of oxygen
Hint
13.
Why are laws protecting the ocean difficult to enforce?
a.
The United States controls all of the oceans.
b.
The laws are unreasonable.
c.
No country has control of all the oceans.
d.
No one has made these laws.
Hint
14.
When you look at coral on a reef, what are you seeing?
a.
the hard shells of the coral animals
b.
mineral deposits from water
c.
deposits from fishes
d.
the actual coral animals themselves
Hint
15.
What process deposits materials in the deep ocean?
a.
precipitation
b.
underground streams
c.
volcanic deposits
d.
dissolved gases
Hint
16.
Where does the continental shelf begin?
a.
at the ocean floor
b.
at the bottom of the continental slope
c.
at the shoreline
d.
at the mid-ocean ridge
Hint
17.
Which is not a source of ocean pollution?
a.
oil spill
b.
sediment
c.
smokestacks
d.
sewage
Hint
18.
Which is one of the most abundant mineral resource in the ocean?
a.
gold
b.
water
c.
oxygen
d.
crude oil
Hint
19.
Which is NOT a characteristic of plankton?
a.
drift in currents
b.
some feed on other plankton
c.
large animals
d.
many are single-celled organisms
Hint
20.
Why do tide pools make good habitats?
a.
They are protected from humans.
b.
They allow access to the ocean.
c.
They provide protection from predators.
d.
They are freshwater habitats.
Hint
