Relative Dating

Relative Dating

How Do Scientists Determine the Age of Sedimentary Rocks & Fossils?

Multiple Choice

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

• F
• E
• B
• A

Multiple Choice

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

Multiple Choice

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

• A
• B
• C

Multiple Choice

Layer L is ___________ Layer H

• older than

• the same age as

• younger than

• uplifted from

Multiple Choice

According to the principle of _______, Layers Q, M, O, N, and L were not deposited at an angle when they first formed.

• superposition

• original horizontality

Multiple Choice

In this diagram, what scientific law tells us that rock layer C is older than rock layer A?

• Cross-cutting

• Lateral Continuity

• Superposition

• Original Horizontality

Multiple Choice

According to the principle of _______, Event P is younger than Event M.

• superposition

• original horizontality

• lateral continuity

• cross-cutting relationships

Multiple Choice

Correctly sequence the layers of rocks oldest to youngest 

• A,D, C, B, E
• E, B,C D, A
• B,E,C, D, A

Multiple Choice

Which of the following organisms formed last on Earth?

• Jellyfish
• Shark
• Lizards
• Horses

Multiple Choice

The best index fossils have which two traits?

• widespread geographically, long lifespan
• widespread geographically, short lifespan
• specific place, long lifespan
• specific place, short lifespan