There is also a historic
station named as Ernakulam Terminus(station code: Erg) situated behind the High Court.
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5
Alderfer further developed Maslow's hierarchy of needs by categorizing the hierarchy into his Erg theory Existence, Relatedness and Growth.
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6
The Sahara is mainly rocky hamada(stone plateaus); Ergs(sand seas-
large areas covered with sand dunes) form only a minor part, but many of the sand dunes are over 180 metres(590 ft) high.