AP BIOLOGY

Detailed explanation-1: -Hydrocarbon combustion refers to the chemical reaction where a hydrocarbon reacts with oxygen to create carbon dioxide, water, and heat. Hydrocarbons are molecules consisting of both hydrogen and carbon.

Detailed explanation-2: -It is a combination reaction as carbon combines with oxygen to form carbon dioxide. It is a combustion reaction as carbon is burnt in the presence of oxygen.

Detailed explanation-3: -Hence, option (C) Combustion reaction is the correct option. In the given reaction, methane reacts with oxygen to form water and carbon dioxide along with heat and light. Therefore, this reaction is considered a combustion reaction.

Detailed explanation-4: -During combustion or burning, carbon from fossil fuels combine with oxygen in the air to form carbon dioxide and water vapor.