You are presented with the question "What can be determined with radioactive dating?" and the following answer choices: 
- the age of algae
 - the age of flowers
 - the age of mammals
 - basic building blocks of life
 - dead organisms
 - movement of tectonic plates
 - the age of petrified wood
 - objects that have mass

Now knowing that radioactive dating is used to determine the age of fossils and fossil Petrified wood is the state fossil, choose the best answer.


 

       the age of petrified wood  