Question

Human evolution began approximately 7 crore years ago
Justify and give example.

Answer 1

Just Big Bang Theory it is given in the NCERT evolution chapter very detailed manner you can get it from there what is your asking for the example example will be the RNA because we got are in a wing very simpler organism which have first arrived on the earth that is why we can conclude that Arena is this the existence of irony is very very very far away from the starting of earth so we can get it from there that it is existence is more than 7 crore years I hope it will help you

Answer 2

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Introduction to Human Evolution
Human evolution
Human evolution is the lengthy process of change by which people originated from apelike ancestors. Scientific evidence shows that the physical and behavioral traits shared by all people originated from apelike ancestors and evolved over a period of approximately six million years.

One of the earliest defining human traits, bipedalism -- the ability to walk on two legs -- evolved over 4 million years ago. Other important human characteristics -- such as a large and complex brain, the ability to make and use tools, and the capacity for language -- developed more recently. Many advanced traits -- including complex symbolic expression, art, and elaborate cultural diversity -- emerged mainly during the past 100,000 years.