Superposition and Horizontality

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.

This rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this?

• Sedimentary
• Igneous
• Metamorphic

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

• A
• B
• C

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

The ________ states that layers of sediment were originally deposited horizontally under the action of gravity.

• law of superposition
• law of horizontality 
• uniformitarianism 
• unconformities

states that the geologic feature which cuts another is the younger of the two features

• law of horizontality
• cross cutting relationships
• law of superposition
• uniformitarianism