1. The bacteria that produce methane when they eat organic matter are
called biodigesters. What advantage do biodigesters have over other
sources of renewable energy, such as solar and wind power?
Biodigesters can produce energy twenty-four hours a day every day.
Biodigesters have been studied carefully to make them very efficient.
Electricity produced through biodigestion can be sold for more money.
Burning methane produced through biodigestion creates less pollution.