Relative and absolute age dating study guide

What is the method of finding the age of a fossil by calculating its radioactive decay

• Relative Dating
• Carbon dating 
• Absolute date
• Cyber dating

What estimated percent of plants and animals become fossils after death?

• 1 %
• 100 %
• 20 %
• 5 %

Darwin hypothesized that slight differences in traits make some individuals in a species better able to survive than others. These individuals are better adapted to their environment. More of their offspring tend to survive. What is this called?

• Diversity 
• Remorse
• Natural selection
• Natural reader

Scientists are studying layers of rock and the fossils contained within them. They notice that the oldest fossils (found in layers B-D) are all aquatic organisms. Then there is a layer of volcanic ash (Layer E), followed by new land dwelling fossilized organisms. Which hypothesis supports the fossil evidence about the extinction of the older aquatic organisms?

• The aquatic organisms went extinct because of other animals
• The aquatic organisms went extinct because of lots of flooding
• The aquatic organisms went extinct because of violent volcanic eruptions 
• The aquatic organisms went extinct because climate change.

What is the difference between relative age dating and absolute age dating?

• Difference is relative is radiometric and absolute is numaric
• difference is absolute is radiometric and relative is numeric 

How do you determine the age of a fossil?

• relative age dating
• absolute age dating
• optional dating 
•  both 1 and 2