At the time the earth was formed,the universe was what fraction of its present size?
A) 1/4
B) 1/2
C) 2/3
D) 100%
Correct Answer:
Verified
Q6: Some of the earliest fossils indicate that
Q7: At the moment,the best guess for the
Q8: The process that explains the movements of
Q9: An important result of the evolution of
Q10: The earth was formed about
A)1 million years
Q12: The heavy elements that now make up
Q13: Most of the history of life on
Q14: The extinction that wiped out the dinosaurs
Q15: How old is the first evidence of
Q16: The formation of the "supercontinent" of Pangea
A)was
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