20khodges
20khodges 20khodges
  • 04-08-2017
  • Biology
contestada

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

Respuesta :

kphung76127
kphung76127 kphung76127
  • 04-08-2017
The answer is A, ozone.
Answer Link
kaidanwaltonk2 kaidanwaltonk2
  • 10-10-2019

Answer:

A) Ozone

Explanation:

I just took the test

Answer Link

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