Mariana Trench trivia
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Mariana Trench Mini Quiz
Test your knowledge with these top questions!
Question 1
Named after the ship that first measured its depth, what is the deepest known point of the Mariana Trench?
Challenger Deep is named for the HMS Challenger, the British ship that first measured the Mariana Trench's depth in 1875 during a global scientific expedition.
Question 2
The trench floor has a thick ooze made from what material, crushed into a fine powder by the immense water pressure?
Deep-sea ooze on trench floors forms from microscopic calcareous shells of foraminifera and coccolithophores, pulverized into fine powder by extreme water pressure.
Question 3
The trench was formed by subduction, a process where one tectonic plate slides under another at what type of boundary?
Subduction occurs at convergent plate boundaries, where one plate is forced beneath another, forming deep oceanic trenches like the Mariana Trench, the deepest point on Earth at over 11 km.
Question 4
Vents on the trench floor known as black smokers erupt superheated water due to which type of geologic activity?
Black smokers form when seawater penetrates the ocean floor, gets heated by underlying magma, and rises as mineral-rich, superheated fluid through hydrothermal vents.