1.
What is the mixture of hydrogen and carbon monoxide produced from biomass?
2.
Where is "garbage gas" most commonly collected?
3.
What aquatic organism is being studied as a high-yield biofuel source?
4.
What is the complex carbohydrate in plants that can be turned into fuel?
5.
What solid fuel is created by heating wood in the absence of air?
6.
What animal waste is commonly used in farm-based biogas digesters?
7.
What is the fiber leftover after crushing sugarcane for juice?
8.
What biological catalysts are used to break down plant matter into sugars?
9.
What process uses yeast to turn plant sugars into ethanol?
10.
What is the main byproduct of making biodiesel?
11.
are the leaves and stalks of corn left in a field after harvest?
12.
Besides cellulose and lignin, what is the third main component of wood?
13.
What is a block of compressed coal dust or biomass used for fuel?
14.
What is the practice of burning biomass along with coal in a power plant?
15.
What charcoal-like substance is used to improve soil and store carbon?
