Fact 1: Biofuel is used to produce electricity by burning.

Fact 2: Biofuels can reduce the greenhouse effect.

Given the two facts above, answer the question "what reduces greenhouse effect?" with the following options: 
- Fully cooking the oysters
 - Something made from fermented ricce
 - fuel
 - reusing materials
 - gas
 - some electricity production
 - evaporative cooling
 - cells


 

      some electricity production   