Question

How do you breath? please i need mega help

Answer 1

Answer:

by inhaling and exhaling, inhaling oxygen and exhaling carbon dioxide

Explanation:

Answer 2

Answer:

When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.