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Oceans Quiz

Oceans · Medium

20 questions · Unlimited attempts · Free online practice

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
  1. 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
  2. In which ocean are the Seychelles located?

    • A. Indian
    • B. Pacific
    • C. Arctic
    • D. Atlantic
  3. What is the name of the Atlantic Ocean's deepest point - a trench in the Caribbean?

    • A. Barracuda Trench
    • B. Milwaukee Deep
    • C. Cayman Trough
    • D. Virgin Islands Trough
  4. 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
  5. What is the name of the deepest point in the Southern Ocean?

    • A. Ross Sea Trench
    • B. Erebus Trench
    • C. South Sandwich Trench
    • D. Weddell Deep
  6. What is the name of the deep ocean phenomenon where bacteria decompose organic matter falling from above - called marine snow?

    • A. Benthic feeding
    • B. Biological cascade
    • C. Biological pump
    • D. Carbon export
  7. The 'St. Lawrence' river connects the Great Lakes to which ocean?

    • A. Pacific
    • B. Atlantic
    • C. Arctic
    • D. Indian
  8. Which ocean is the coldest?

    • A. Arctic
    • B. Indian
    • C. Pacific
    • D. Atlantic
  9. In which ocean would you find the 'Narwhal'?

    • A. Indian
    • B. Pacific
    • C. Arctic
    • D. Southern
  10. The 'Puffin' is most commonly associated with the coastlines of which ocean?

    • A. Indian
    • B. Pacific
    • C. Atlantic
    • D. Southern
  11. Which is the smallest ocean?

    • A. Atlantic
    • B. Pacific
    • C. Indian
    • D. Arctic
  12. 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
  13. What is the average depth of the world's oceans?

    • A. 2,300 m
    • B. 1,500 m
    • C. 3,688 m
    • D. 5,100 m
  14. Which ocean is the smallest?

    • A. Indian
    • B. Atlantic
    • C. Arctic
    • D. Pacific
  15. The 'Gulf Stream' is a warm current in which ocean?

    • A. Pacific
    • B. Indian
    • C. Atlantic
    • D. Arctic
  16. What is the name of the deepest point in the Indian Ocean?

    • A. Sunda Trench
    • B. Wallaby Gap
    • C. Java Trench
    • D. Diamantina Deep
  17. Which is the warmest ocean in the world?

    • A. Pacific
    • B. Indian
    • C. Atlantic
    • D. Arctic
  18. What is the name of the deepest point in the world's oceans?

    • A. Mariana Trench
    • B. Puerto Rico Trench
    • C. Java Trench
    • D. Tonga Trench
  19. The 'Bering Strait' connects the Pacific Ocean to which ocean?

    • A. Indian
    • B. Atlantic
    • C. Arctic
    • D. Southern
  20. What is the name of the global network of ocean observing floats that measure temperature and salinity throughout the water column?

    • A. SOLO System
    • B. XBT Network
    • C. WOCE Floats
    • D. Argo Float Array