Asked by Redrobins!

How does sea-floor spreading occur?
A)New materials are being added to the asthenosphere
B) Earthquakes break apart the ocean floor
C)Sediments accumulate at the areas of the spreading
D)Molten material beneath Earth's crust rises to the surface
Answered by Redrobins!
is it c
Answered by Ms. Sue
http://www.phschool.com/itext/sci_exp/ebook/products/0-13-181243-2/sx5055a3.gif
Answered by Redrobins!
So is it D then?
Answered by Ms. Sue
Yes, I think it's D. But check your text to be sure.
Answered by bobpursley
Yes, D. The then rising molten magna cools, and spreads the existing plates away.
Answered by WOLF
the answer is D :)
Answered by Glitch
D
A
C
B
Answered by Faith
Glitch is correct
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