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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
Indian Ocean
B
Atlantic Ocean
C
Pacific Ocean
D
Arctic Ocean
2) Which ocean extends from the coast of Antarctica to 60 degrees South Latitude?
A
Pacific ocean
B
Southern ocean
C
Arctic Ocean
D
Indian Ocean
3) What affects the ocean's surface temperature?
A
salinity and latitude
B
salinity and moon phases
C
longitude and latitude
D
latitude and season (time of year)
4) What is the most abundant dissolved salt in ocean water?
A
sodium chloride
B
sodium chlorine
C
sodium saline
D
sodium flouride
5) Which of the following could become a volcanic island?
A
a seamount
B
a tectonic plate
C
a rift valley
D
an ocean trench
6) What technologies do scientists use to study the ocean floor?
A
SONAR and satellites
B
SONAR and echo-ranging
C
Scuba and SONAR
D
satellite and Geosat
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
continental margin and mid-ocean ridge
D
rift valley and continental margin
8) What is an ocean trench?
A
A submerged mountain.
B
Is at least 1,000 m deep.
C
A large crack that runs parallel to a chain of volcanic islands along a subduction zone.
D
A valley formed in a rift zone.
9) Why is the ocean water off the coast of Brazil saltier than ocean water off the coast of Greenland?
A
marine life
B
deep ocean currents
C
ocean pollution
D
climate
10) Desalination is the process of removing ____________ from ocean water.
A
salt
B
pollution
C
living organisms
D
nodules
11) The base of the continental slope is called the __________.
A
continental shelf
B
abyssal plain
C
ocean trench
D
continental rise
12) The broad, flat part of the deep-ocean basin is called the ____________.
A
abyssal plain
B
ocean trench
C
continental shelf
D
continental rise
13) The deep ocean basin consists of what features?
A
abyssal plain, mid-ocean ridges, ocean trenches, seamounts, rift valleys
B
abyssal plain, mid-ocean ridges, ocean trenches, seamounts, mountain valleys
C
abyssal plain, mid-ocean ridges, ocean trenches, rift valleys, plateaus
D
abyssal plain, mid-ocean ridges, seamounts, rift valleys, continental slope
14) Where would the temperature of the ocean be the lowest?
A
near the poles in summer
B
near the equator in winter
C
near the equator
D
near the poles in winter
15) With SONAR, what happens to the sound pulses from a ship after they hit the ocean floor?
A
They get louder.
B
They stop.
C
They bounce back to the ship.
D
They're absorbed into the mud.
16) The longer it takes sound to return to a ship,
A
the deeper the ocean floor is in that spot.
B
the louder the sound becomes.
C
the weaker the sound becomes.
D
the closer the ocean floor is in that spot.
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
Deep Flight
D
Geosat
18) Which robotic vessel can withstand pressures much greater than those found in the deepest parts of the ocean.
A
Geosat
B
Alvin
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
are formed in parts of the ocean where water density is great.
B
move in straight paths across the oceans.
C
move warm water from higher latitudes (poles) to lower latitudes (tropics).
D
transport many times more water than all the rivers in the world.
*select an answer for all questions
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