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Earth's Oceans
Test Description: Earth's Oceans and Features
Instructions: Answer all questions to get your test result.
1) Why are most living organisms found on the continental shelf?
A
That's where the warm ocean currents are
B
The water is deep and cold, so organisms can hide at the bottom
C
The water is shallow enough for sunlight to penetrate to the bottom, allowing for the growth of phytoplankton.
D
That's where most of the garbage is dumped in the ocean
2) The organisms that form the base of most ocean food webs are
A
coral
B
kelp
C
plankton
D
fish
3) The part of the ocean that extends from the low-tide line to the edge of the continental shelf is the
A
open-ocean zone
B
neritic zone
C
deep zone
D
intertidal zone
4) Why is upwelling important ?
A
It brings nutrients up from the ocean floor to the surface
B
It takes nutrients from the surface to ocean floor
C
It brings warmer water up to mix with the colder water
D
It allows fish to go out from the shore to the deep ocean
5) Where are hydrothermal vents?
A
near the mid ocean ridge
B
neritic zone
C
intertidal zone
D
surface zone
6) Sea floor spreading occurs in places where two plates are
A
breaking the surface
B
diverging
C
converging
D
motionless
7) Benthos organisms live
A
on the ocean floor
B
in shallow water
C
throughout the water column
D
on the surface of the water
8) A deep canyon in the ocean floor is called a(n)
A
continental shelf
B
seamount
C
trench
D
abyssal plain
9) Where would you expect to find phytoplankton
A
in a trench
B
near hydrothermal vents
C
near the surface of the ocean
D
on the ocean bottom
10) The steep edge of the continental shelf that marks the true edge of the continent is the
A
mid-ocean ridge
B
continental slope
C
abyssal plain
D
continental shelf
11) Which of the following features of the ocean floor occur where two plates diverge?
A
mid-ocean ridge
B
abyssal plain
C
seamount
D
trench
12) A coastal inlet or bay in which freshwater from rivers mixes with salt water from the ocean is called a(n)
A
transition zone
B
hydrothermal vents
C
abyssal plain
D
estuary
13) The area that stretches from the highest high tide on land to the lowest low tide is the
A
continental shelf
B
deep zone
C
intertidal zone
D
open ocean
14) Which below is not a reason why humans cannot explore the deep ocean?
A
it is too cold
B
no sunlight
C
it is too polluted
D
the pressure is too great
15) A technique that uses sound waves to measure the depth of the ocean floor is
A
dredging
B
radar
C
sonar
D
weighted lines
16) Which of the organisms below is an example of plankton?
A
sea star
B
phytoplankton
C
dolphin
D
crab
17) The gently sloping, shallow area of the ocean floor that extends outward from the edge of a continent is the
A
volcanic island
B
continental slope
C
continental shelf
D
seamount
18) What would you use if you wanted to map the mid-ocean ridge?
A
a buoy
B
sonar
C
a submersible
D
a satellite
19) What would you use if you wanted to map the distribution of phytoplankton on the ocean surface?
A
a buoy
B
sonar
C
a satellite
D
a research ship
20) What would you use if you wanted to find the temperature of the water off the coast of Myrtle Beach?
A
a buoy
B
a research ship
C
a satellite
D
sonar
*select an answer for all questions
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