Read the temperature in the images: image 1: 18.7
image 2: 12.9
image 3: 17.25
image 4: 7.4
image 5: 15.65
image 6: 2.4

The primary products of complete combustion of fossil fuels are a. carbon dioxide and water b. methane and water c. carbon monoxide and water d. carbon dioxide and carbon monoxide