Geologic Time Diagram
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Last updated over 3 years ago
5 questions
1
How old is the earth?
How old is the earth?
1
Which of these is the oldest?
Which of these is the oldest?
1
What event happened between the permian and triassic periods?
What event happened between the permian and triassic periods?
1
How many millions of years ago was the beginning of the cretaceous period?
How many millions of years ago was the beginning of the cretaceous period?
1
What period includes present day?
What period includes present day?