World Geography
The major events of Pre-Cambrian era include

formation of crust, birth of oldest known rock, origin of life
All of these
formation of crust, continents and oceans
formation of present day atmosphere

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World Geography
Which among the following statements is/are correct about Pastoral Herding?It is an economic activity more advanced than food gathering and hunting.Labour to enhance and nurture the supply of animal products is the chief investment of the people engaged in this occupation.Select the correct code from the options given below:

Only 2
Neither 1 & 2
Both 1 & 2
Only 1

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