Main 2 elements in seawater? [Archive]

kelleya

Sep 27, 2009, 01:47 PM

What are the main two elements in seawater?
a.) calcium and iron
B.) sodium and chlorine
C.) silicon and magnesium

Sylvanta Sybil

Sep 27, 2009, 11:50 PM

B.) sodium and chlorine.

asking

Oct 8, 2009, 10:36 PM

Hydrogen and oxygen, hands down.