asked 22.7k views
7 votes
The shells of single-celled plankton that sank to the bottom of the ocean has two varieties of which type of atoms?

A. Phosphorous isotopes

B. Carbon isotopes

C. Sodium isotopes

D. Oxygen isotopes

1 Answer

5 votes

Answer: Oxygen Isotopes!

Explanation: I just took the quiz and I got it correct!

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