World Geography
The pedogenic process associated with poor drainage and which involves the accumulation of organic matter in the upper layers of the soil is called

salinisation
gleisation
calcification
podsolisation

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

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World Geography
What is the weight of actual amount of water vapour present in unit volume of air called?

Condensation
Absolute Humidity
Relative Humidity
Specific Humidity

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World Geography
The sidereal month may be defined as

the period in which the moon completes an orbit around the Earth and returns to the same position in the sky
the period of rotation of moon
the period in which the moon completes an orbit around the earth
None of these

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