Fact 1: Operating an automobile usually requires fossil fuels.

Fact 2: Car and automobile, for example, are synonyms.

Given the two facts above, answer the question "What requires fossil fuels?" with the following options: 
- Electric generators
 - learning about dinosaurs
 - walking to school
 - operating most cars
 - biking to work
 - most organisms
 - move to different locations
 - agriculture


 

    operating most cars     