If matter can only change form through physical and chemical changes, where does all the matter we get rid of when losing weight end up in?

Question

If matter can only change form through physical and chemical changes, where does all the matter we get rid of when losing weight end up in?

In: 65

Answer 1

You breathe, sweat, pee, and poop it out. Mostly, though, breathing. You’re using oxygen (breathe in) to break up carbon-based materials (like carbohydrates), and producing water (you pee and sweat) and carbon dioxide (you breathe out).