The Seafloor – Flashcards
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Petroleum and coal can be mined from the continental shelf.
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True
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It is less expensive to mine minerals from deep-water deposits than from continental shelf deposits.
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False
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occur at underwater subduction zones
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trenches
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____ are formed when one crustal plate is forced under another.
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Trenches
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Sediment tends to build up in the
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Abyssal Plain
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Every year, plates under the ocean move approximately
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1-2 centimeters
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A mid-ocean ridge is formed from ____.
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lava
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Deposits of gold can be found in the deep ocean.
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True
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Which of the following can occur next to the continental shelf?
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IT IS NOT All of the above
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A mid-ocean ridge forms at what type of plate boundary?
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divergent
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All of the following statements are true of mining minerals from the ocean EXCEPT:
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Mining for deep-water deposits is just as easy as mining for continental shelf deposits.
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Trenches occur at divergent plate boundaries.
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False
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Mineral resources that can be found in the deep ocean include coal and petroleum.
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False
