Fact 1: Fossil fuels are formed from dead organisms over time.

Fact 2: Eons are the largest divisions of the time scale.

Given the two facts above, answer the question "How long does it take for fossil fuels to be formed from dead organisms?" with the following options: 
- mostly
 - oil
 - Eons
 - Winter
 - three
 - Five
 - coal
 - two


 

   Eons      