The columns below represent rocks from different geographic regions. Each layer within a column represents a brief period of time.

Identify which fossil, A, B, C, or D is the best index fossil. Use one piece of evidence from the diagram to support your answer. Short Answer (2 points)

Objects a and b are visible in the night sky. six months later they are still visible, but object b shows less parallax than object a. which object is closer? a. a b. b c. you would need to wait another six months in order to figure this out. d. you would need to know the objects' angular diameters in order to figure this out.