What is...?
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Methane
Methane is a gas. It comes from poo and rotting vegetables. We can burn methane, so we call it a biogas.
MFC
MFCs or Microbial fuel cells contain bacteria that can turn the food they eat into electricity.