This Figure Shows the Main Subdivisions of the Geologic Timescale

Q20: What is the main geologic feature for

Q71: Which of the following is the earliest

Q72: Which of the following is NOT accurately

Q79: How would we use isotopic ages to

Q84: Which of the four numbered features on

Q85: Of the following numbered units,which is the

Q86: What type of feature is represented by

Q87: What would fossil ages from the geologic

Q91: How does an angular unconformity form?<br>A) rocks

Q111: What strategies do we use to investigate