If a fossil were to be discovered which was 3.7 billion years old this would tell us that life on Earth must have arisen
A) exactly 3.7 billion years ago
B) at least 3.7 billion years ago
C) less than 3.7 billion years ago
D) much later than 3.7 billion years ago
Correct Answer:
Verified
Q2: The first life to originate on Earth
Q3: Carbon isotope evidence from rocks found on
Q4: Microfossils found in northwestern Australia in 2011
Q5: Microfossil evidence suggests that life
A) originated when
Q6: Currently, the strongest evidence for microfossils dates
Q7: Microfossils are
A) fossilized microbes
B) the remains of
Q8: Which approach is currently proving to be
Q9: Stromatolites date back to approximately
A) 4.6 billion
Q10: Microfossils found in northwestern Australia in 2011
Q11: Why have studies of the geological record
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