Question

Which of the following is mainly produced by the activity of anaerobic bacteria on cowdung?

• A. bog gas
• B. Laughing gas
• C. Propane
• D. Mustard gas

Answer 1

The correct option is A

bog gas

Marsh gas, swamp gas and bog gas are common names for biogas which forms in wetlands. The principal component of biogas is methane with hydrogen sulfide with carbon dioxide as a minor components.