1.
Organic matter used as a fuel source is called ______.
2.
Biomass gets its initial energy from the sun through ______.
3.
AN alcohol fuel made from corn or sugar cane is ______.
4.
A fuel made from vegetable oils or animal fats is ______.
5.
The gas produced by the breakdown of organic waste in landfills is ______.
6.
A tank where bacteria break down waste to produce gas is a ______.
7.
Burning biomass to create heat or electricity is called ______.
8.
Decomposition in the absence of oxygen is ______ digestion.
9.
Wood ______ are a common compressed form of biomass for heating.
10.
Biomass is considered ______-neutral because plants absorb CO2 as they grow.
11.
Turning biomass into a gas mixture (syngas) is called ______.
12.
Black liquid fuel produced by heating biomass rapidly without oxygen is ______ oil.
13.
Living organisms or their metabolic byproducts are the ______ for biomass.
14.
What is the most common traditional form of biomass?
15.
Waste-to-______ plants burn municipal trash to generate power.
