In science, the term theory is applied only to ideas that are supported by a vast, diverse array of evidence. How is the term used in everyday life?

It explains facts and allows people to make predictions.

Explanation:

In everyday life, the word theory often means an untested hunch, or a guess without supporting evidence. A theory not only explains known facts but also allows scientists to make predictions of what they should observe if a theory is true.

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

i believe the answer would be b. hope it : )