Definition of Arid Semi arid and Humid Zone

Tuesday, January 22, 2013 15:45
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Arid zone

This may be defined as

The zone for which mean annual rainfall is less than 15 inches is called as arid zone.

Or

The zone which is excessively dry and having insufficient rainfall to support agriculture.

Semi arid zone

This zone may be defined as

The zone in which the mean annual rainfall is in the range of 15-30 inches is called as semi arid zone.

Humid zone

Humid zone may be defined as

The zone in which the mean annual rainfall is more than 30 inches is known as humid zone.

Or

The zone which is characterized by appreciable moisture is known as humid zone.

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