Question

why we need to breathe out carbon dioxide.

Answer 1

Answer:

it is because human beings live only with Oxygen gas so when lungs will exit out carbon dioxide be in held Oxygen gas which helps us to ⱡłvɇ

₱ⱡɇ₳₴ɇ ₥₳ɽ₭ ₳₴ ₳ ฿ɽ₳ł₦ⱡłɇ₴₮

Answer 2

Answer:

When we take a breath, we pull air into our lungs that contains mostly nitrogen and oxygen. When we exhale, we breathe out mostly carbon dioxide. ... Oxygen helps our cells work harder by breaking down the nutrients we get from food like sugars. With sugars and oxygen, our cells can create the energy they need to function.Jul 12, 2017