Question

2. Read the following statements and justify same in your own words with the help of suitable examples. a. Human evolution began approximately 7 crore years ago​

Answer 1

Answer:

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Explanation:

Human evolution took place in time period of about 7 crore years. According to this concept the journey of human evolution is as follows: <br> (1) Approximately around 7 crore years back the ice age began on the earth. In such conditions, dinosaurs became extinct. The evolution and diversity of mammals started during this time. Due to change in climate the forest cover also declined rapidly. <br> (2) Ancestors of monkey-like animals were Lemur like animals which evolved during this time period. <br> (3) The tails of these monkey-like creatures started vanishing very gradually around 4 crore years ago. <br> (4) The body and brain both increased in volume forming first ape like animals. The monkey like ancestors gave rise to two evolutionary links to apes and human like animals. <br> (5) Later, the human evolution took place by changes in the brain volume, the ability to walk upright, excessive use of hand for manipulations. <br> (6) This journey of human evolution began 7 crore years ago. But the true wise and intelligent man arose around 50,000 years ago.

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