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12 questions from this quiz
Organic materials like plants & waste
Solid, liquid, or gaseous
Straw
Sugarcane or corn
Vegetable oils or animal fats
In the absence of oxygen
By fermenting sugars
Mixed with petrol to power cars
Replenished in a short time period
CO2CO_2CO2 released equals amount absorbed
Diverts manure & food waste from landfill
Takes land from food crops
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