Question

Why do we need to breathe out carbon dioxide

Answer 1

we need to breath out carbon Di oxide because its not good for our health and hence it gets disposed out and also because indirectly the plants in return want carbon dioxide so as to carry out photosynthesis and give oxygen again for the presence of human life in atmosphere.....

hope it helps u friend..❤

Answer 2

Explanation:

This is because our cells use oxygen from the inhaled air to release energy and give out carbon dioxide as a byproduct.