What is false about breathing?
Breathing is carried out by lungs
We inhale oxygen and exhale carbon dioxide
The lungs expand during exhalation and contract during inhalation
Breathing occurs in two phases i.e. inhalation and exhalation
The lungs expand when we breathe in (inhalation) and contract when we breathe out (exhalation)
What happens during inhalation and exhalation
When we inhale, we take air into our lungs. what do we breathe out during exhalation? options A :carbon dioxide option B: Nitrogen option C:Oxygen option
D: a mixture of gases that has more carbon dioxide than inhaled air optionE: a and c