When we breathe we inhale oxygen, O₂ ,and exhale carbon dioxide, CO₂ ,plus water vapor, H₂O.Which likely has more mass,the air that we inhale or the same volume of air we exhale? Does breathing cause you to lose or gain weight? A)The air we inhale has more mass; Breathing causes you to lose weight. B)The air we exhale has more mass; Breathing causes you to lose weight. C)The air we inhale has more mass; Breathing causes you to gain weight. D)The air we exhale has more mass; Breathing causes you to gain weight.

Question

Quizplus · Accepted Answer

The air we exhale has more mass because it contains carbon dioxide and water vapor in addition to the oxygen we inhaled. When we exhale, we are releasing these substances into the air, adding to the mass of the exhaled air. However, breathing overall does not cause significant weight loss or gain as the amount of gases exchanged during breathing is very small compared to our overall body mass.

When We Breathe We Inhale Oxygen, O2 ,And Exhale Carbon

When We Breathe We Inhale Oxygen, O₂ ,And Exhale Carbon