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Oceans Quiz
Oceans · Timed
20 questions · 10 min timer · Instant feedback
Earth's oceans cover approximately 71 percent of the planet's surface and are divided into five major bodies: the Pacific, Atlantic, Indian, Southern, and Arctic Oceans. The Pacifi...
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All 20 questions in this Oceans quiz
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The 'Strait of Gibraltar' connects the Atlantic Ocean to which sea?
- A. Red Sea
- B. Black Sea
- C. Mediterranean Sea
- D. Caribbean Sea
-
Which ocean is the Bermuda Triangle located in?
- A. Arctic Ocean
- B. Pacific Ocean
- C. Indian Ocean
- D. Atlantic Ocean
-
What is the name of the annual phenomenon where coral spawns simultaneously across the Great Barrier Reef?
- A. Annual Coral Bloom
- B. Coral Aggregation
- C. Spawning Tide
- D. Coral Spawning Event
-
In which ocean are the Maldives islands located - the world's lowest-lying country?
- A. Atlantic Ocean
- B. Pacific Ocean
- C. Arctic Ocean
- D. Indian Ocean
-
The 'Bering Strait' connects the Pacific Ocean to which ocean?
- A. Indian
- B. Atlantic
- C. Arctic
- D. Southern
-
The 'Gulf Stream' is a warm current in which ocean?
- A. Pacific
- B. Indian
- C. Atlantic
- D. Arctic
-
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
-
Which is the smallest ocean in the world?
- A. Indian
- B. Southern
- C. Arctic
- D. Atlantic
-
Which is the smallest ocean?
- A. Atlantic
- B. Pacific
- C. Indian
- D. Arctic
-
What is the approximate salt content of average seawater in parts per thousand?
- A. 35 ppt
- B. 15 ppt
- C. 25 ppt
- D. 45 ppt
-
Which ocean contains the Great Barrier Reef - the world's largest coral reef system?
- A. Indian Ocean
- B. Pacific Ocean
- C. Atlantic Ocean
- D. Southern Ocean
-
What is the name of the deepest point in the Indian Ocean?
- A. Sunda Trench
- B. Wallaby Gap
- C. Java Trench
- D. Diamantina Deep
-
Which is the warmest ocean in the world?
- A. Pacific
- B. Indian
- C. Atlantic
- D. Arctic
-
What fraction of global oxygen is produced by ocean phytoplankton?
- A. One third
- B. One quarter
- C. Two thirds
- D. One half
-
What name is given to the region where two ocean water masses with different temperatures and salinities meet?
- A. Oceanographic front
- B. Isocline
- C. Thermocline
- D. Ocean convergence
-
What is the name of the phenomenon where sea surface temperatures in the eastern Pacific become unusually warm affecting global weather patterns?
- A. ENSO neutral
- B. La Nia
- C. El Nio
- D. Negative PDO
-
What is the name of the large-scale ocean current in the Pacific that shifts direction seasonally with the Asian monsoon?
- A. North Pacific Current
- B. North Equatorial Current
- C. Pacific Monsoon Gyre
- D. Kuroshio Current
-
The 'Bay of Bengal' is part of which ocean?
- A. Pacific
- B. Arctic
- C. Indian
- D. Atlantic
-
Which ocean contains the world's largest atoll (coral ring island) by land area?
- A. Southern Ocean
- B. Pacific Ocean
- C. Indian Ocean
- D. Atlantic Ocean
-
Which ocean is smallest?
- A. Indian
- B. Atlantic
- C. Arctic
- D. Pacific