The 3500 mya the life begin. The first life in Earth is blue-green.When the 235 mya the first dinosaur and lizards appear.The time pass, in the Earth Tyrannosaurus is the king . However, at the 65 mya the 170km stone hits the Earth. All most all the dinosaurs disappeared. 
2 comments:
Ok. but you only did half the assignment???
..........thank you
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