You are presented with the question "Using a gasoline engine requires doing what to gasoline?" and the following answer choices: 
- Dehydration
 - Cooking
 - Smoking
 - energy usage
 - vaporization
 - consuming
 - adding heat
 - evaporation

Now knowing that using a gasoline engine requires burning gasoline and when they are burned, fossil fuels are consumed, choose the best answer.


 

      consuming   