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

calcification
podsolisation
salinisation
gleisation

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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 in which the moon completes an orbit around the earth
the period of rotation of moon
None of these

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