Fact 1: Biofuel is used to produce electricity by burning. Fact 2: Biofuels can reduce the greenhouse effect. Given the two facts above, what reduces greenhouse effect?

Choices:
A). Fully cooking the oysters
B). Something made from fermented ricce
C). fuel
D). reusing materials
E). gas
F). some electricity production
G). evaporative cooling
H). cells
The answer is:
F).