Law of Superposition

The Law of Superposition helps scientists to determine what?

• The absolute age of rock layers

• The age of fossils

• The relative age of rock layers

• the super powers of squirrels

According to the law of superposition, the oldest fossils are found 

• At the top of the rock layers
• Near the bottom of the rock layers
• In the middle of the rock layers
• Somewhat near the surface

_{Which rock layer in the diagram seems to be the oldest?}

• F
• E
• B
• A

According to the law of superposition, which layer is the youngest?

• A
• B
• C

Which of the following correctly lists the layers in order from oldest to youngest?

• A, B, C, D, E

• E, B, C, D, A

• E, D, C, B, A

• C, B, A, D, E

What is the oldest layer in the outcrop?

• B
• C
• D
• E

What is the youngest layer in the outcrop?

• A
• B
• C
• D

Which rock layer most likely contains fossils of the most recently evolved organisms?

• 4
• 3
• 1
• 2

What is the relative age of a rock?

• The age determined by the things around it.

• The age of an igneous rock.

• The age determined by radioactive dating.

• The time it takes for 1/2 of the radioactive atoms to decay in an element.

Which of the following happened most recently?

• A. Deposition of Unit C
• B. Deposition of Unit B
• C. Deposition of Unit F
• D. Tilting of C, D, E, and F