Fact 1: Radioactive dating is used to determine the age of fossils.

Fact 2: For a fossil to be made, the dead plant or animal has to be buried rapidly by sediment.

Given the two facts above, answer the question "What is used to determine the age of plants or animals buried rapidly by sediment?" with the following options: 
- electron microscope
 - ruler
 - carbon dating
 - fossil dating
 - blastoids
 - microscope
 - Physical weathering
 - history books


 

   carbon dating      