On what basis scientists have said human beings and the earth didn't come into existence at the same time.
What is tertiary epoch? Which organisms evolve and developed during various periods within this epoch?
In which era do the following animals evolve? write them.
What is the Cenozoic era? Under what era does Jurassic period belong to?
How is it known that there were dinosaur in the earth in ancient time? In which period were they formed?
Name the era, epoch and period in which mountain, hills and sedimentary rocks were formed.
Mention the time period of Proterozoic period and Paleozoic era and give one major event of each era.
In which era and period was the first green plant evolved.
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