What geological feature is primarily responsible for the formation of massive sulfide deposits on the ocean floor?
How the Ocean Floor Got Filled with Riches

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Science, Geography, Biology, Physics, Chemistry
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11th Grade - University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Underwater volcanoes
Hydrothermal vents
Deep-sea trenches
Coral reefs
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which metals are commonly found in cobalt-rich crusts?
Copper and zinc
Lead and sulfur
Cobalt and manganese
Gold and silver
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do manganese nodules begin to form on the ocean floor?
From tectonic plate movements
Around a piece of debris
Through volcanic eruptions
By chemical reactions with seawater
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role do bacteria play in the formation of manganese nodules?
They prevent the accumulation of metals
They convert manganese to manganese oxide
They provide a nucleus for growth
They dissolve metals in seawater
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is there concern about mining manganese nodules from the ocean floor?
It may disrupt sea floor ecosystems
It requires advanced technology not yet available
It could deplete land-based metal resources
It is too expensive to be profitable
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