Paleontology Review

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

How old do Paleontologists believe the Earth is?

• 2015 years old
• 3.6 billion years old
• 4.6 billion years old
• 4.6 million years old

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

_{What can scientists learn from the sequence of rock layers?}

• Geologic history of that area
• Future geological events
• the number of organisms that live in the area
• the impact that hikers have had on an area.

Which of the following is the oldest?

• Layer L
• Intrusion D
• Intrusion H
• Layer E

Letter "F" is a....

• inclusion
• intrusion
• fault
• unconformity 

Whats an index fossil?

• is an organism that lived for a short amount of time , were plentiful, and lived in a wide geographical area
• are fossils that have spaces inside that are filled in with minerals from groundwater
• is a thin film of carbon remains of a once living organism that was preserved as a fossil
  
• are the remains of bones, teeth, or shells of once living organisms

Scientists use ____ rock to determine the relative age of fossils.

• Intrusive Igneous Rock
• Extrusive Igneous Rock
• Metamphorphic Rock
• Sedimentary Rock

The fossil record...

• Has gaps 
• Shows the history of life on earth
• Helps scientists understand how species have evolved over time
• All of these are correct