If all of Earths history were compressed into an hour, humans would first appear less than
A. 1 second ago.
B. 10 seconds ago.
C. 1 minute ago.
D. 10 minutes ago.
Answer:A
If all of Earths history were compressed into an hour, humans would first appear less than
A. 1 second ago. B. 10 seconds ago. C. 1 minute ago. D. 10 minutes ago.