Merena is trying to memorise the various eras and periods in the geologic table.She begins by memorising the Cenozoic, Mesozoic and Paleozoic as three eras.She then memorises the three periods from the Cenozoic, the three periods from the Mesozoic and the six periods from the Paleozoic.Merena's method of organising the material she is trying to remember illustrates the concept of

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Merena is organising the material in a hierarchy, with the eras at the highest level and the periods at lower levels. This is an example of conceptual hierarchies, which involve organising information into increasingly specific categories or levels based on similarities and differences.

Merena Is Trying to Memorise the Various Eras and Periods