Multiple Choice
Why have studies of the geological record not enabled us to determine how life on Earth originated?
A) the first living organisms would have left absolutely no trace of their existence
B) life was planted on the Earth by an advanced civilization so there is no evidence in the geological record to find
C) the geological record does not extend back to the time that life originated
D) the oldest rocks are too deep inside the Earth for us to retrieve
Correct Answer:

Verified
Correct Answer:
Verified
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