Question

Pollution from animal excreta and organic waste from
kitchen can be most profitably minimized by

• A. storing them in underground storage tanks
  
• B. vermiculture
  
• C. using them for producing biogas
  
• D. using them directly as biofertilizers
  

Answer 1

The correct option is C using them for producing biogas


Part 1: Animal waste
Animal excreta and organic waste can be used for producing biogas.
Biogas is the gas produced by anaerobic respiration of animal excreta (cow dung) and organic wastes from kitchen by anaerobes and results in the formation of gases like methane, carbon dioxide.