methane
The simplest alkane hydrocarbon (CH₄); used in chemistry, energy, and environmental contexts.
from German Methan
Methane is the main component of natural gas.
In wetlands, methane is generated by the action of microorganisms.
Cow burps contain methane.
Cows emit methane during digestion.
City gas mainly obtains heat by burning methane.
methane hydrate
methanogen
methanoic acid; formic acid
methane fermentation
methanogen
Borrowed from German 'Methan'.