The Ocean Study Questions For The Final Exam

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| By Rdteague

Rdteague

Community Contributor

Quizzes Created: 35 | Total Attempts: 11,445

Questions: 12 | Attempts: 315 | Updated: Mar 20, 2023

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Questions and Answers

1.

Approximately how much of Earth's surface is covered by water?
- A.
  
  50 %
- B.
  
  30 %
- C.
  
  70 %
- D.
  
  40 %
Correct Answer
C. 70 %

Explanation
Approximately 70% of Earth's surface is covered by water. This includes the oceans, seas, lakes, and rivers. Water is essential for supporting life on Earth and plays a crucial role in regulating the planet's climate and weather patterns. The vast amount of water on Earth also influences various natural processes, such as the water cycle and the distribution of heat around the globe.

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2.

What technology does scientists use to measure ocean depth?
- A.
  
  Sonar
- B.
  
  Laser
- C.
  
  Rope
- D.
  
  Submersible
Correct Answer
A. Sonar

Explanation
Scientists use sonar technology to measure ocean depth. Sonar stands for Sound Navigation and Ranging, and it works by sending sound waves into the water and measuring the time it takes for the waves to bounce back. By analyzing the time it takes for the sound waves to return, scientists can determine the depth of the ocean. Sonar is commonly used in oceanography and hydrography to create detailed maps of the ocean floor and to study underwater features such as trenches and ridges.

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3.

This image was MOST likely taken from the ________________________.
- A.
  
  Continental margin
- B.
  
  Seamounts
- C.
  
  Abyssal plains
- D.
  
  Continental shelf
Correct Answer
C. Abyssal plains

Explanation
The image is most likely taken from the abyssal plains because abyssal plains are flat, sediment-covered areas found on the deep ocean floor. This image does not show any features such as seamounts or continental shelves, which are typically found in shallower areas. The continental margin is the transition zone between the continental shelf and the deep ocean, so it is also not likely to be the correct answer.

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4.

Which one of the following water bodies is the largest ocean?
- A.
  
  Atlantic Ocean
- B.
  
  Arctic Ocean
- C.
  
  Indian Ocean
- D.
  
  Pacific Ocean
- E.
  
  Aral Sea
Correct Answer
D. Pacific Ocean

Explanation
The Pacific Ocean is the correct answer because it is the largest ocean in the world, covering an area of approximately 63 million square miles. It is also the deepest ocean, with an average depth of about 12,080 feet. The Pacific Ocean borders the eastern coastlines of Asia and Australia, as well as the western coastlines of the Americas. It is known for its vast size, diverse marine life, and important role in global climate patterns.

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5.

The ____________ are likely the most level places on Earth
- A.
  
  Guyots
- B.
  
  Deep-ocean trenches
- C.
  
  Mid-ocean ridges
- D.
  
  Continental slopes
- E.
  
  None of the above
Correct Answer
E. None of the above

Explanation
The correct answer is "none of the above" because the question asks for the most level places on Earth, and none of the options provided (guyots, deep-ocean trenches, mid-ocean ridges, continental slopes) fit that description. Guyots are underwater mountains with flat tops, deep-ocean trenches are deep depressions, mid-ocean ridges are underwater mountain ranges, and continental slopes are the steep edges between continental shelves and deep ocean basins. Therefore, none of these options can be considered the most level places on Earth.

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6.

The true edge of the continent is the continental slope
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The continental slope is the steep incline that marks the true edge of a continent. It is located between the continental shelf and the deep ocean floor. This area is characterized by a rapid increase in depth and is often associated with underwater canyons and trenches. The continental slope is an important geological feature that separates the continental crust from the oceanic crust. Therefore, the statement that the true edge of the continent is the continental slope is correct.

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7.

Identify the Continental Shelf.
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
Correct Answer
A. A
8.

Satellites measure the ocean floor using ________________________ .
- A.
  
  Light
- B.
  
  Sound
- C.
  
  Microwaves
Correct Answer
C. Microwaves

Explanation
Satellites measure the ocean floor using microwaves. Microwaves have the ability to penetrate through the water surface and reach the ocean floor. By measuring the time it takes for the microwave signal to bounce back, satellites can determine the depth and topography of the ocean floor. This method is commonly used in satellite altimetry, where the satellite measures the height of the sea surface and the data is then used to create maps of the ocean floor.

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9.

The _______________________________ reef is the largest reef in the world.
- A.
  
  Reefs of Bora Bora
- B.
  
  Great Barrier Reef
- C.
  
  Cozumel Reefs
Correct Answer
B. Great Barrier Reef

Explanation
The Great Barrier Reef is the correct answer because it is widely recognized as the largest reef in the world. Located off the coast of Queensland, Australia, it stretches over 2,300 kilometers and is home to a diverse range of marine life. Its size and ecological importance make it a popular tourist destination and a UNESCO World Heritage site. The other options, Reefs of Bora Bora and Cozumel Reefs, are not as well-known or as large as the Great Barrier Reef.

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10.

Choose the BEST answer(s). How did oceanographers obtain Crater Lake's bathymetry?
- A.
  
  Sonar
- B.
  
  Divers
- C.
  
  Photographs
- D.
  
  Satellite
Correct Answer
D. Satellite

Explanation
Oceanographers obtained Crater Lake's bathymetry using satellite technology. Satellites can collect data about the Earth's surface and its features, including bodies of water like Crater Lake. Satellite imagery can provide detailed information about the depth and contours of the lake's bottom, allowing oceanographers to create accurate bathymetric maps. This method is efficient and non-invasive, as it does not require physical presence or direct contact with the lake.

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11.

Choose the answer below that is the MOST CORRECT order of the Ocean BASINS from SMALLEST to LARGEST.
- A.
  
  Atlantic, Pacific, Indian, Arctic
- B.
  
  Arctic, Indian, Pacific, Atlantic
- C.
  
  Pacific, Indian, Atlantic, Arctic
- D.
  
  Arctic, Indian, Atlantic, Pacific
Correct Answer
D. Arctic, Indian, Atlantic, Pacific

Explanation
The answer "Arctic, Indian, Atlantic, Pacific" is the most correct order of the ocean basins from smallest to largest. The Arctic Ocean is the smallest of the four basins, followed by the Indian Ocean, the Atlantic Ocean, and finally the Pacific Ocean, which is the largest.

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12.

Look at this Image. Choose the BEST answer below.
- A.
  
  This is an example of a symbiotic relationship
- B.
  
  The coral and clown fish are enemies
- C.
  
  The clown fish are eating the coral eggs
Correct Answer
A. This is an example of a symbiotic relationship

Explanation
The image shows a coral and a clownfish living together. This is an example of a symbiotic relationship because both species benefit from each other. The coral provides shelter and protection for the clownfish, while the clownfish helps to clean the coral by eating parasites and algae. This mutually beneficial interaction is a classic example of symbiosis in nature.

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