World Geography
Which kind of precipitation occurs when a front or boundary line is formed between two air masses of contrasting temperature?

Frontal
Cyclonic
Orographic
Convectional

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

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World Geography
Which among the following region has the highest density of rail network?

Eastern Asia
South east Asia
North America
Western Europe

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