Register
Until the early there were only neglible amounts of free oxygen in the atmosphere. A: Mesozic B Cenozoic C Proterozoic D Precambian
138k views
1 vote
Until the early there were only neglible amounts of free oxygen in the atmosphere.

A: Mesozic
B Cenozoic
C Proterozoic
D Precambian

User Jayeshkumar Sojitra
by
6.8k points

1 Answer

2 votes

C

Quite sure it is C

User Mdandr
by
7.0k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.1m questions

10.7m answers

Other Questions

What are three ways water erodes the surface of earth
How have computers changed mapmaking in recent years
How does weathering affect Plateaus?
what is the outlet of a river called
An example of a stateless nation in the middle east is provided by who?
Link Copied!