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Oceans Quiz
Oceans · Timed
20 questions · 10 min timer · Instant feedback
Oceans cover more than 70% of Earth's surface, making them the planet's largest ecosystems and one of the most important factors shaping climate, weather, biodiversity, and human c...
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All 20 questions in this Oceans quiz
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What is the name of the large circular ocean current systems found in each of the major ocean basins?
- A. Gyres
- B. Eddies
- C. Vortices
- D. Whorls
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In which ocean are the Seychelles located?
- A. Indian
- B. Pacific
- C. Arctic
- D. Atlantic
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What is the name of the ocean current driven by wind that circles Antarctica - the world's largest current?
- A. Antarctic Circumpolar Current
- B. Southern Ocean Current
- C. Roaring Forties Current
- D. Circumpolar Current
-
Which ocean is becoming increasingly important for shipping as Arctic sea ice retreats due to climate change?
- A. Arctic Ocean
- B. Pacific Ocean
- C. Indian Ocean
- D. Atlantic Ocean
-
Which is the deepest ocean in the world?
- A. Atlantic
- B. Pacific
- C. Arctic
- D. Indian
-
What percentage of the world's fish species live in the ocean compared to fresh water?
- A. 0.45
- B. 0.75
- C. 0.65
- D. 0.58
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Which ocean is the smallest?
- A. Indian
- B. Atlantic
- C. Arctic
- D. Pacific
-
The 'St. Lawrence' river connects the Great Lakes to which ocean?
- A. Pacific
- B. Atlantic
- C. Arctic
- D. Indian
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What is the name of the deep ocean zones below 6,000 metres found in ocean trenches?
- A. Hadal zone
- B. Midnight zone
- C. Abyssal zone
- D. Trenche zone
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What is the name of the process by which the ocean absorbs CO from the atmosphere - making seawater more acidic?
- A. Alkalinity reduction
- B. Ocean acidification
- C. Marine carbon sequestration
- D. Carbonate dissolution
-
Which country controls the most territorial ocean waters in the world measured by Exclusive Economic Zone?
- A. France
- B. USA
- C. Russia
- D. Australia
-
Which ocean is smallest?
- A. Indian
- B. Atlantic
- C. Arctic
- D. Pacific
-
Which ocean lies between Africa and Australia?
- A. Pacific
- B. Southern
- C. Indian
- D. Atlantic
-
What is the name of the zone in the ocean between approximately 200-1,000 metres where light is insufficient for photosynthesis?
- A. Midnight zone
- B. Mesopelagic zone
- C. Abyssal zone
- D. Hadal zone
-
What is the name of the ocean layer between approximately 1,000-4,000 metres depth - characterised by near-freezing temperatures and complete darkness?
- A. Midnight zone
- B. Hadal zone
- C. Bathypelagic zone
- D. Abyssal zone
-
What is the name of the phenomenon where tides are highest due to alignment of the Earth, Moon, and Sun?
- A. Perigean tide
- B. Neap tide
- C. King tide
- D. Spring tide
-
Which ocean is home to the world's largest known animal - the blue whale?
- A. Atlantic Ocean
- B. All of the world's oceans
- C. Indian Ocean
- D. Southern Ocean
-
What is the name of the Indian Ocean's largest island?
- A. Maldives
- B. Sri Lanka
- C. Runion
- D. Madagascar
-
What percentage of the world's oceans are considered international waters (high seas) - beyond any country's national jurisdiction?
- A. 0.64
- B. 0.57
- C. 0.33
- D. 0.46
-
The 'Bay of Bengal' is part of which ocean?
- A. Pacific
- B. Arctic
- C. Indian
- D. Atlantic