stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
The Precambrian Era Flashcards | StudBud
The Precambrian Era
1 / 12
Why do we know so little about the Precambrian Era?
A
Erosion, subduction, and metamorphsis of rocks has occurred
B
There was no life to study
C
The Earth was too new
D
There was no oxygen
Next
0
0
correct · 0:00
