When trees are burned, which gas is commonly released as stored carbon?

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Multiple Choice

When trees are burned, which gas is commonly released as stored carbon?

Explanation:
When biomass like wood is burned, the carbon stored in the wood is released mainly as carbon dioxide. This happens because burning is an oxidation process: carbon reacts with oxygen in the air to form CO2, with water forming from the hydrogen. In typical burning with plenty of oxygen, carbon dioxide is the primary gas that returns stored carbon to the atmosphere, making CO2 the main greenhouse gas emitted from burning biomass. Sometimes incomplete combustion can produce carbon monoxide or methane, but those are not the usual products when wood burns cleanly. Nitrous oxide isn’t a standard product of ordinary biomass burning. So the gas most commonly released as stored carbon is carbon dioxide.

When biomass like wood is burned, the carbon stored in the wood is released mainly as carbon dioxide. This happens because burning is an oxidation process: carbon reacts with oxygen in the air to form CO2, with water forming from the hydrogen. In typical burning with plenty of oxygen, carbon dioxide is the primary gas that returns stored carbon to the atmosphere, making CO2 the main greenhouse gas emitted from burning biomass.

Sometimes incomplete combustion can produce carbon monoxide or methane, but those are not the usual products when wood burns cleanly. Nitrous oxide isn’t a standard product of ordinary biomass burning. So the gas most commonly released as stored carbon is carbon dioxide.

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