Respuesta :

Incomplete combustion occurs when the supply of air or oxygen is poor. Water is still produced, but carbon monoxide and carbon are produced instead of carbon dioxide

Answer:

All of the fuel is not used

Explanation:

In complete combustion, there is enough oxygen present to “burn” all of the carbon fuel. By contrast, there is not enough oxygen available to burn all of the carbon fuel in the process of incomplete combustion.

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