Question

I am back. How do I exhale?

Answer 1

Answer:

breathe

Explanation:

Answer 2

Answer:

by letting out carbon dioxide

Explanation:

To breathe in, the diaphragm contracts and moves downward. This increases the space in the chest cavity, allowing the lungs to expand and fill with air. To breathe out, the diaphragm relaxes, reducing the space in the chest cavity. This causes the lungs to deflate and let out the air.