Q5. All the human races like Africans, Europeans, Americans and other might have evolved from a common ancesstor. Provide a few evidences in support of this view.

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Solution

The fossil records show a gradual transition from over 5 million years ago from chimpanzee sized creatures to hominids with larger brains who walked on two legs.
Later hominids used fire and stone tools and had brains as large as present human beings.
Fossils in East Africa date back to 200,000 years.
By about 30,000 years humans developed fire, stone tools etc.
Around 10.000 years ago they spread all across the globe.
Humans share the same genome as chimps than any other animal.
Further evolution happened to populations which had scattered across the globe.

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