17. What subdivisions make up the geologic time scale? What is the primary basis for differentiating the eras?

By: Answerout


Question: 17. What subdivisions make up the geologic time scale? What is the primary basis for differentiating the eras?

Answer: The Correct Answer is The major subdivisions of the geologic time scale, from longest to shortest, are eon, era, period, and epoch. Life-forms (fossils) were the primary basis for differentiating the eras.

Reason Explained

The correct is The major subdivisions of the geologic time scale, from longest to shortest, are eon, era, period, and epoch. Life-forms (fossils) were the primary basis for differentiating the eras.

comments
leave comment

Captcha

3 * 8 = ?