Question

to breathe out is to​

Answer 1

Answer:

intransitive/transitive

Explanation:

intransitive/transitive to send air out of your lungs through your nose or mouth. Now breathe out slowly. Synonyms and related words. To breathe, or to have difficulty breathing.

Present participle: breathing out

He/she/it: breathes out

Past tense: breathed out

Answer 2

Answer:

I think because of the carbon dioxide produced during the breaking of carbohydrates