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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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cattyson cattyson
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6 years ago
How does an ocean basin form?
 
  a) Convection cells in the asthenosphere pull the sea floor apart, and the spreading creates ocean lithosphere in the gap left between the pieces.
  b) Continental lithosphere becomes so dense that it sinks.
  c) All of the ocean basins were formed when Earth's crust first formed, so there are no new oceans.
  d) Meteorite impacts cause huge craters that are the precursors to oceans.
  e) Heat and volcanism from Earth's mantle can cause granitic continental crust to change into basaltic ocean crust.
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Jmassey95Jmassey95
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6 years ago
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cattyson Author
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6 years ago
You make an excellent tutor!
Ivansitospeed@g
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Yesterday
Thanks
nicolepope23
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2 hours ago
This helped my grade so much Perfect
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