The fundamental time unit representing a major change in life ...

[c0205847]

The fundamental time unit representing a major change in life forms is the
 
  A) eon subdivision.
  B) era subdivision.
  C) period subdivision.
  D) epoch subdivision.

Question 2

The geologic time scale is broken up into time units of different sizes based on
 
  A) eons, eras, periods, and epochs.
  B) changes in fossilization.
  C) visible and nonvisible life forms.
  D) major changes in life forms.

[TINA]

Answer to Question 1

Answer: C

Answer to Question 2

Answer: D

[c0205847]

Thanks for the timely response, appreciate it

[steff9894]

YES! Correct, THANKS for helping me on my review