World Geography
The umbra is

the inner portion of the moon's shadow
both (a) and (b)
formed by tangents to the sun and moon
None of these

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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:

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

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World Geography
Which among the following statements is/are correct about Population of the world?In the twentieth century itself the population has increased four times.Human population increased more than ten times in the past 500 hundred years.World population exploded in the eighteenth century after the Industrial Revolution.Select the correct code from the options given below:

Only 1
Only 2 & 3
Only 3
1, 2 & 3

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