Law of Superposition and Dating of Rocks and Fossils

What is the primary purpose of index fossils?

• They help scientists determine the absolute age of sedimentary rocks
• The help scientists determine the relative age of rocks
• They help scientists indentify mass extinctions in Earth’s history
• They provide scientists with evidence for the theory of evolution by natural selection

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 rocks

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 type of dating method can be used on rock layers by applying the Law of Superposition?

• relative dating
• absolute dating
• radioactive dating
• radiometric dating

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

The rock formation labeled "P" is a(n)...

• fault
• intrusion
• inclusion
• unconformity

Letter "F" is a....

• inclusion
• intrusion
• fault
• unconformity 

Which Rock layer or intrusion is the youngest?

• A
• B
• C
• D