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Oceans Test Review
Test Description: Studying Earth's Oceans and their characteristics as well as currents, tides waves.
Instructions: Answer all questions to get your test result.
1) The world's smallest ocean.
A
Pacific Ocean
B
Arctic Ocean
C
Indian Ocean
D
Atlantic Ocean
2) Which ocean extends from the coast of Antarctica to 60 degrees South Latitude?
A
Arctic Ocean
B
Southern ocean
C
Pacific ocean
D
Indian Ocean
3) What affects the ocean's surface temperature?
A
longitude and latitude
B
latitude and season (time of year)
C
salinity and moon phases
D
salinity and latitude
4) What is the most abundant dissolved salt in ocean water?
A
sodium chloride
B
sodium saline
C
sodium flouride
D
sodium chlorine
5) Which of the following could become a volcanic island?
A
a rift valley
B
an ocean trench
C
a tectonic plate
D
a seamount
6) What technologies do scientists use to study the ocean floor?
A
SONAR and echo-ranging
B
Scuba and SONAR
C
satellite and Geosat
D
SONAR and satellites
7) What are the two major regions of the ocean floor?
A
continental margin and deep-ocean basin
B
seamount and deep-ocean basin
C
rift valley and continental margin
D
continental margin and mid-ocean ridge
8) What is an ocean trench?
A
Is at least 1,000 m deep.
B
A valley formed in a rift zone.
C
A large crack that runs parallel to a chain of volcanic islands along a subduction zone.
D
A submerged mountain.
9) Why is the ocean water off the coast of Brazil saltier than ocean water off the coast of Greenland?
A
climate
B
ocean pollution
C
marine life
D
deep ocean currents
10) Desalination is the process of removing ____________ from ocean water.
A
salt
B
pollution
C
nodules
D
living organisms
11) The base of the continental slope is called the __________.
A
abyssal plain
B
ocean trench
C
continental shelf
D
continental rise
12) The broad, flat part of the deep-ocean basin is called the ____________.
A
ocean trench
B
continental shelf
C
continental rise
D
abyssal plain
13) The deep ocean basin consists of what features?
A
abyssal plain, mid-ocean ridges, ocean trenches, seamounts, mountain valleys
B
abyssal plain, mid-ocean ridges, ocean trenches, seamounts, rift valleys
C
abyssal plain, mid-ocean ridges, seamounts, rift valleys, continental slope
D
abyssal plain, mid-ocean ridges, ocean trenches, rift valleys, plateaus
14) Where would the temperature of the ocean be the lowest?
A
near the poles in summer
B
near the poles in winter
C
near the equator in winter
D
near the equator
15) With SONAR, what happens to the sound pulses from a ship after they hit the ocean floor?
A
They stop.
B
They bounce back to the ship.
C
They're absorbed into the mud.
D
They get louder.
16) The longer it takes sound to return to a ship,
A
the closer the ocean floor is in that spot.
B
the deeper the ocean floor is in that spot.
C
the weaker the sound becomes.
D
the louder the sound becomes.
17) Which piloted vessel is used to travel the deep ocean for many underwater missions, including searches for sunken ships, the recovery of a lost hydrogen bomb and explorations of the sea floor.
A
Alvin
B
Jason II
C
Geosat
D
Deep Flight
18) Which robotic vessel can withstand pressures much greater than those found in the deepest parts of the ocean.
A
Alvin
B
Geosat
C
Jason II
D
Deep Flight
19) In 1947, Thor Heyerdahl sailed a simple raft from Peru to Polynesia, following the ocean currents for more than 6,000 Km. Which statement accurately describes what Heyerdahl proved by this voyage?
A
Ancient Peru was settled by people from Polynesia.
B
It would have been possible for people from ancient Peru to reach Polynesia by following ocean currents.
C
People from ancient Peru were the first settlers of Polynesia.
D
Polynesia was settled accidentally when rafts from Peru were carried out by ocean currents.
20) Surface ocean currents such as the Gulf Stream...
A
transport many times more water than all the rivers in the world.
B
move warm water from higher latitudes (poles) to lower latitudes (tropics).
C
move in straight paths across the oceans.
D
are formed in parts of the ocean where water density is great.
*select an answer for all questions
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