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During the Cambrian period on Earth, the ___________ layer developed along with the massive production of oxygen. A) ozone B) ocean C) mantel D) carbon dioxide
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During the Cambrian period on Earth, the ___________ layer developed along with the massive production of oxygen.

A) ozone
B) ocean
C) mantel
D) carbon dioxide

User Wojtek Kruszewski
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2 Answers

5 votes

Answer:

A) Ozone

Step-by-step explanation:

I just took the test

User Josh Kelly
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1 vote
The answer is A, ozone.
User Compton
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