World Geography
The Penumbra is

the outer portion of the moon's shadow
formed by the tangent that intersects between the sun and the moon
both (a) and (b)
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
Only 1
Only 2
Neither 1 & 2

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World Geography
The periodic rise and fall of the sea level on the earth, gives rise to tides. This is related to

None of these
ultraviolet rays from the sun
the position of the moon with reference to the earth and the gravitational pull exerted mainly by the moon and partly by the sun
infrared rays from the sun

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