Ocean Floor - Test Yourself
A quiz to test yourself on Earth Science material regarding the Ocean Floor, for review.
- 1.
Oceanography is a specific branch of geology.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Oceanography is the interdisciplinary science that uses information and knowledge of geology, physics, chemistry, and biology to better understand our oceans.Rate this question:
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- 2.
The Northern Hemisphere is often referred to as the land hemisphere.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
This is in constrast to the Southern "water" Hemisphere where approximately 80% of the surface is water.Rate this question:
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- 3.
We can use sonar to study the ocean floor because
- A.
We know the speed of sound in water
- B.
We know how big the ship is
- C.
Satellites provide the rate of gravity
- D.
We have detailed maps of the complete seafloor
- E.
We can't measure the depth
Correct Answer
A. We know the speed of sound in waterExplanation
The speed of sound in water is about 1500 meters/second.Rate this question:
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- 4.
Which one of the following water bodies is the largest ocean?
- A.
Arctic Ocean
- B.
Atlantic Ocean
- C.
Aral Sea
- D.
Indian Ocean
- E.
Pacific Ocean
Correct Answer
E. Pacific OceanExplanation
The Pacific Ocean is the largest ocean in the world. It covers an area of approximately 63.8 million square miles, which is more than twice the size of the second-largest ocean, the Atlantic Ocean. The Pacific Ocean is also the deepest ocean, with the Mariana Trench reaching a depth of about 36,070 feet. It is located between the eastern coastlines of Asia and the western coastlines of the Americas. The Pacific Ocean is known for its vastness and is home to numerous islands and marine life.Rate this question:
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- 5.
The measurement of ocean depths and the charting of the shape or topography of the ocean floor is
- A.
Altimetry
- B.
Oceanography
- C.
Sonimetry
- D.
Bathymetry
- E.
None of the above
Correct Answer
D. BathymetryExplanation
Bathymetry is the correct answer because it refers to the measurement and mapping of the depths and topography of the ocean floor. Altimetry is the measurement of altitude, oceanography is the study of the ocean and its phenomena, and sonimetry is not a recognized term. Therefore, bathymetry is the most appropriate term for the given context.Rate this question:
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- 6.
Which of the following is not considered one of the four main ocean basins?
- A.
Asiatic
- B.
Indian
- C.
Arctic
- D.
Pacific
- E.
Atlantic
Correct Answer
A. AsiaticExplanation
The Pacific Ocean is the largest single geographic feature on the planet and is connected to several marginal seas.Rate this question:
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- 7.
The ____________ are likely the most level places on Earth.
- A.
Guyots
- B.
Continental slopes
- C.
Mid-ocean ridges
- D.
Deep-ocean trenches
- E.
None of the above
Correct Answer
E. None of the aboveExplanation
You might be flat out of luck if you don't know the key term to match this definition. Review information about the ocean basins.Rate this question:
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- 8.
The mid-ocean ridge winds through all major oceans.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Seafloor spreading occurs in these high heat flow areas.Rate this question:
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- 9.
The true edge of the continent is the continental slope.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A portion of the continental landmass and associated sediments is submerged underneath the coastal waters.Rate this question:
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- 10.
Downslope movements of dense, sediment-laden water are known as ____________ currents.
- A.
Avalanche
- B.
Sediment
- C.
Longshore
- D.
Density
- E.
Turbidity
Correct Answer
E. TurbidityExplanation
With so much sediment, it is a fast-tumbling, muddy mess carried along underwater by these currents.Rate this question:
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Current Version
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Mar 22, 2023Quiz Edited by
ProProfs Editorial Team -
Mar 23, 2009Quiz Created by
Oceanfloor