The Division of the Geologic Time Scale into Units Termed

question 76

Multiple Choice

The division of the geologic time scale into units termed eons is based what measurement or observation?

• A)faunal succession
• B)mass extinction events
• C)isotopic ages
• D)major environmental changes

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Definitions:

Categorical Syllogism

A form of deductive reasoning consisting of three parts: two premises and a conclusion, where all statements are categorical propositions.

Conclusion

The end or finish of an event, process, or text; in logic, it is the statement that necessarily follows from the premises of an argument.

Categorical Syllogism

A form of deductive reasoning consisting of three propositions: a major premise, a minor premise, and a conclusion, each of which states a relationship between categories.

Propositions

Statements or assertions that express judgments or opinions which can be either true or false.