Asked by Angie

What is the source of most of the sodium, magnesium, and calcium ions in seawater?

A weathering of seafloor rocks
B weathering and erosion of continental rocks
C deep-ocean organic-matter sediments
D gases from underwater volcanic eruptions
Answered by mysterychicken
I think it would be C or D...I THINK it might be C
-MC
Answered by Annoymous
Anyone know?
Answered by myah
correct answer is B
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