Boundaries Between Intervals of the Geological Time Scale Are Determined

question 78

Multiple Choice

Boundaries between intervals of the geological time scale are determined by

• A)dividing the time range of the interval by the number desired subdivisions,thereby creating equal intervals between the divisions.
• B)major events in the Earth's history,such as major extinctions.
• C)using a quantile method whereby the number of years in each subdivision is determined by dividing the number of years by the desired number of classes.
• D)climatic periods based on paleoclimatological reconstructions.
• E)historical misunderstandings based on the principle of uniformitarianism;they remain as relicts of this bygone scientific period.

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