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Sergeeva-Olga [200]
3 years ago
9

The earth's oceans are made up of _______, ________, chlorine, and trace elements. A) carbon, oxygen B) oxygen, silicon C) hydro

gen, oxygen D) nitrogen, oxygen
Biology
2 answers:
NikAS [45]3 years ago
7 0
The answer would be D) nitrogen and oxygen 

Katarina [22]3 years ago
3 0
I think the answer is A
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