An aerial view of a single boat sailing in the sea at daytime

How much do you know about the ocean?

Celebrate World Oceans Day with this quiz

08 June 2024

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Ready to test your knowledge of the world’s amazing oceans? To celebrate World Oceans Day 2024, we’ve created a quiz covering everything from the salty surface to the darkest depths.

Jump in and find out how much you know about the watery world around us.

Good luck!

<section data-block="SingleChoice"><h3>What percentage of the Earth's surface is covered by oceans?</h3><ul><li>20%</li><li>50%</li><li>71%</li><li>90%</li></ul></section><section data-block="SingleChoice"><h3>What is the deepest point of the ocean called?</h3><ul><li>The Challenger Deep</li><li>The Abyssal Plain</li><li>The Continental Shelf</li><li>The Coral Reef</li></ul></section><section data-block="SingleChoice"><h3>What percentage of ocean species do scientists estimate are still unknown?</h3><ul><li>10%</li><li>24%</li><li>68%</li><li>91%</li></ul></section><section data-block="SingleChoice"><h3>How salty is the ocean? </h3><p><p>The ocean is salty, but what’s the average ocean salinity? </p></p><ul><li>Around 1.5%</li><li>Around 3.5%</li><li>Around 6.5%</li><li>Around 9.5%</li></ul></section><section data-block="Order"><h3>What are the five biggest animals living in the ocean?</h3><p><p>Arrange these animals in order of size, (biggest to smallest).</p></p><ul><li>Blue whale</li><li>Fin whale</li><li>Whale shark</li><li>Sperm whale</li><li>Giant manta ray</li></ul></section><section data-block="SingleChoice"><h3>The Pacific Ocean is the world’s largest. Which ocean is the smallest? </h3><ul><li>The Arctic Ocean</li><li>The Atlantic Ocean</li><li>The Indian Ocean</li><li>The Southern Ocean</li></ul></section><section data-block="SingleChoice"><h3>Rising water temperatures are a major threat to coral reefs. What is the name of the process by which coral reefs expel their algae (zooxanthellae) and turn white?</h3><ul><li>Coral bleaching</li><li>Starvation</li><li>Predation</li><li>Pollution overload</li></ul></section><section data-block="SingleChoice"><h3>What is the name of the furthest point on Earth from any land, located in the South Pacific? </h3><ul><li>Point Nemo </li><li>Davy Jones’s locker</li><li>The Great Pacific Garbage Patch</li><li>The Mariana Trench</li></ul></section><section data-block="SingleChoice"><h3>Can you identify which marine animal makes this sound?</h3><p><p><em>A series of melancholic moans, groans, whistles, and pops put together in a special order (themes), which the animal repeats over and over. </em></p></p><ul><li>A humpback whale </li><li>A lobster</li><li>A West Indian manatee</li><li>A bottlenose dolphin</li></ul></section>

Topics

climate change, ocean

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