Question

give reasons .. please reply me fast ​

Answer 1

1) because without breath we can't live we can die

and other u can search in Google

Answer 2

Answer:

we need to breathe as oxygen is the main thing on which all the human are based ,due to breatheing are all the organ stars working and we are able to live with breathing oxygen will not go inside and our may stop working and we may die

Explanation:

due to doing the work in fast our organ also work fast and it need more oxygen and so breathing rate is fast during fast physical activities