If radioactive dating can determine the age of petrified wood, then what can be determined with radioactive dating?

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

 

       the age of petrified wood   