stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
A Trip Through Time (Pendleton) Flashcards | StudBud
A Trip Through Time (Pendleton)
1 / 50
Australian Zircon crystals estimated at 4.2 billion. Which statement describes period it formed
A
formed shortly after Earth formed
B
formed same time animals first inhabited land environments
C
formed recently in Earth's history
D
<p>formed about the same time as oxygen began increasing</p>
Next
0
0
correct · 0:00
