The main component of biogas is methane, in addition to hydrogen, carbon monoxide, carbon dioxide, etc. It is a cheap energy source for cooking and lighting, which is clean and convenient; it can also replace gasoline and diesel and is an ideal gas fuel. Which of the following statements about biogas is incorrect? ['Biogas can be used for cooking.', 'Biogas can replace gasoline and diesel.', 'Biogas is an ideal gas fuel.', 'The main components of biogas are carbon monoxide and carbon dioxide.']