World Geography
Which among the following factor/factors have led to the extensive development of dairy farming in the dairy belt of North America?Hot and humid climateRainfall varying between 55 and 125 cm.Select the correct code from the options given below:

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

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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
1, 2 & 3
Only 2 & 3
Only 3

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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
the position of the moon with reference to the earth and the gravitational pull exerted mainly by the moon and partly by the sun
ultraviolet rays from the sun
infrared rays from the sun

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