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The Geologic History of the Earth Scaled to a Single Year
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1

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How long ago did the Earth form?
A)4 thousand years ago
B)4.6 million years ago
C)460 million years ago
D)4.6 billion years ago
E)46 billion years ago
2
Approximately how much of Earth history went by before animal life evolved?
A)one quarter
B)one third
C)one half
D)three quarters
E)five sixths
3
For the first one sixth of Earth history, what event was shaping the planet?
A)formation of large continents
B)evolution of dinosaurs
C)intense meteorite bombardment
D)formation of the moon
E)both c and d
4
Which event happened before dinosaurs went extinct?
A)formation of Pangea
B)evolution of humans
C)uplift of the Alps and Himalaya
D)evolution of most modern mammal groups
E)none of the above
5
If the history of the Earth is scaled to a single year, for how long are modern humans in existence?
A)two months
B)12 days
C)24 hours
D)2 hours
E)12 minutes





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