How Much Do You Know About Oceanography?

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| By Hyperfairydust

Hyperfairydust

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Quizzes Created: 1 | Total Attempts: 2,459

Questions: 10 | Attempts: 2,459 | Updated: Jun 27, 2024

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How Much Do You Know About Oceanography? - Quiz

Oceanography is the studying and exploring the ocean as well as understanding and unravelling the mysteries by analysing biology, chemistry, geology, and physics to understand the processes within it. This quiz will test your knowledge on the basics of oceanography. So, let's try out the quiz. All the best!

Questions and Answers

1.

How long is the Midocean Ridge
- A.
  
  10,000 miles
- B.
  
  50,000 miles
- C.
  
  100,000 miles
- D.
  
  2 miles
- E.
  
  900 miles
Correct Answer
B. 50,000 miles

Explanation
The Midocean Ridge is a continuous underwater mountain range that stretches across the Earth's oceans. It is the longest mountain range on Earth, extending for approximately 50,000 miles. This ridge is formed by tectonic plate movements and volcanic activity, and it plays a crucial role in the process of seafloor spreading. The length of 50,000 miles indicates the vastness and significance of this geological feature in shaping the Earth's crust.

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1
0
2.

Modern oceanography is typically attributed to the Challenger Expedition, which began when?
- A.
  
  1872
- B.
  
  1888
- C.
  
  1891
- D.
  
  1856
Correct Answer
A. 1872

Explanation
The British expedition took rock samples, recorded water temperatures and performed many other important observations.

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3.

What topic does physical oceanography research?
- A.
  
  Properties of sea water
- B.
  
  The shallow areas where land meets water
- C.
  
  The traits of underwater soils
Correct Answer
A. Properties of sea water

Explanation
The chemistry of sea water changes constantly depending on weather conditions and many other factors.

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4.

What is the approximate temperature of the deep ocean?
- A.
  
  39 degrees Fahrenheit
- B.
  
  42 degrees Fahrenheit
- C.
  
  45 degrees Fahrenheit
- D.
  
  38 degrees Fahrenheit
Correct Answer
A. 39 degrees Fahrenheit

Explanation
The deep ocean is a dark and frigid place.

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5.

What percentage of the world's volcanic activity occurs within the oceans?
- A.
  
  90%
- B.
  
  70%
- C.
  
  50%
- D.
  
  80%
Correct Answer
A. 90%

Explanation
Those volcanic eruptions have a large impact on the surrounding ecosystems.

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6.

Scientists that study the ocean are called this.
- A.
  
  Scientists of the oceans
- B.
  
  Ocean Scientists
- C.
  
  Oceanographers
- D.
  
  Weather Scientist
Correct Answer
C. OceanograpHers

Explanation
Oceanographers are scientists who study the ocean. They specialize in various aspects of the ocean, such as its physical properties, marine life, and the interactions between the ocean and the atmosphere. They use various tools and techniques to collect data and analyze it in order to understand the complex systems and processes of the ocean. By studying the ocean, oceanographers contribute to our knowledge of climate change, marine ecosystems, and natural hazards such as tsunamis and hurricanes.

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7.

Oceanographers study hydrothermal vents. What are these?
- A.
  
  Underwater volcanoes
- B.
  
  rare fish
- C.
  
  Seaweed holes
- D.
  
  Tsunmai
Correct Answer
A. Underwater volcanoes

Explanation
Hydrothermal vents are underwater volcanoes. These are openings in the Earth's crust where hot water and minerals are released into the surrounding ocean. They are often found near tectonic plate boundaries and are associated with volcanic activity. Oceanographers study these vents to understand their geological and biological significance, as they support unique ecosystems and contribute to the chemical composition of the oceans.

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8.

The substances in seawater, which most affect the colour reflected are:
- A.
  
  Phytoplankton
- B.
  
  zooplankton
- C.
  
  salt
- D.
  
  Trace metals
Correct Answer
A. pHytoplankton

Explanation
Phytoplankton are microscopic marine plants that contain pigments, such as chlorophyll, which give them their green color. These pigments can absorb and scatter light, affecting the color of seawater. When there is a high concentration of phytoplankton in the water, the color reflected can appear greenish. Therefore, the presence of phytoplankton is the most influential factor in determining the color of seawater.

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9.

If you study chemical elements in seawater, you're practising which branch of oceanography?
- A.
  
  Biological Oceanography
- B.
  
  Physical Oceanography
- C.
  
  Chemical Oceanography
- D.
  
  None
Correct Answer
C. Chemical OceanograpHy

Explanation
The oceans perpetually cycle chemicals of all kinds through their currents

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10.

How did the first researchers determine ocean depths?
- A.
  
  They refracted light into the depths
- B.
  
  Rope and Lead Weights
- C.
  
  They attached rope to a large fish and released it
- D.
  
  None
Correct Answer
B. Rope and Lead Weights

Explanation
It was called sounding, and it was primitive but effective.

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Current Version
Jun 27, 2024

Quiz Edited by
ProProfs Editorial Team
Oct 25, 2007

Quiz Created by
Hyperfairydust

How Much Do You Know About Oceanography?

How long is the Midocean Ridge

Modern oceanography is typically attributed to the Challenger Expedition, which began when?

What topic does physical oceanography research?

What is the approximate temperature of the deep ocean?

What percentage of the world's volcanic activity occurs within the oceans?

Scientists that study the ocean are called this.

Oceanographers study hydrothermal vents. What are these?

The substances in seawater, which most affect the colour reflected are:

If you study chemical elements in seawater, you're practising which branch of oceanography?

How did the first researchers determine ocean depths?