Which of the following is true about oxidation reactions?

A. Oxidation reactions are the principal source of energy on Earth.
B. All oxidation reactions are accompanied by reduction reactions.
C. The burning of wood in a fireplace and the metabolization of food by your body are oxidation reactions.
D. all of the above

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  1. Well, B and C are correct. Now on A, it seems to me that the Sun is the principal source of Energy on Earth, however, I am not certain what the answer writer had in mind when she wrote "on Earth". If she meant energy produced on Earth, then that will not include the that case, answer d. So I dunno.

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  2. well thank you for your information :)

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