Question

plz plz answer me plz plz plz plz plz plz plz plz plz​

Answer 1

Answer:

Hello

Explanation:

A: answer = because our nose contains hair which stop dust and other hamrful air to go inside our body

B : answer = because while we move fast we breath slow and when we stop moving fast the air derictely comes so thats why

C : answer = sorry i dont know this one :(

D : answer = you should do it your self

nice to help you

hope it helps

bye

matk me as a brainlist

stay home stay safe

Answer 2

Answer:

1. we should always breath from our nose not from our mouth because there is nostrils in our nose which prevents dust particals to go inside our body.

2. When you exercise and your muscles work harder, your body uses more oxygen and produces more carbon dioxide. To cope with this extra demand, your breathing has to increase from about 15 times a minute (12 litres of air) when you are resting, up to about 40–60 times a minute (100 litres of air) during exercise.

3.When you inhale, your diaphragm contracts (tightens) and moves downward. This creates more space in your chest cavity, allowing the lungs to expand. When you exhale, the opposite happens — your diaphragm relaxes and moves upward in the chest cavity.

4. Don't now answer of fourth question