Unit 10 Part 1 Fossils

Which best describes a fossils that helps determine the relative age of a rock layer?

• index fossil

• trace fossil

• mold fossil

• cast fossil

Which process would be most effective in determining the age of fossils embedded in rock?

• relative dating

• absolute dating

• use of index fossils

• match dating

Which layer contains the oldest infex fossil?

• Layer A

• Layer B

• Layer C

• Layer D

Which statement is true?

• The oldest layers of rock and soil are closest to the surface of Earth

• The youngest layers of rock and soil are farthest from the surface of Earth

• Absolute age dating and relative age dating are two methods used by scientists to determine age of geologic evidence

What type of fossil is shown in the picture?

• Mold fossil

• Trace fossil

• Carbonaceous film

• Cast fossil

The length of time required for half of the radioactive atoms in a sample to decay is its...

• era

• age

• half-life

• eon

The original element that undergoes radioactive decay is known as the...

• daughter element

• parent element

• half-life

• son element

Scientists use radioactive decay to measure...

• absolute time

• relative time

• half-lives

• irrelative time

Which principle states that the oldest layer will be at the bottom of an undisturbed sequence of rock layers?

• Principle of Cross-Cutting Relationships

• Principle of Superposition

• Principle of Unconformities

• Principle of Time

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

• R,P,K,M,S,X,B,J,F

• P,K,M,S,X,B,J,F,R

• P,K,M,S,X,R,B,J,F

• K,M,P,S,X,R,B,J,F