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78% of air breathed is nitrogen
breathed out air turns lime water cloudy than breathed out air cuz the carbon dioxide content present in breathed out air(0.04% approximately) as compared to breathed out air(4% approximately)so as CO2 passes through lime water it turns lime water cloudy:)
because its nice
Air is breathed out of the lungs in the form of carbon dioxide. Air that is inhaled is called oxygen.
Vital Capacity is the largest volume of air that can be breathed in and out in one breath.
Because the body does not use the nitrogen in any way.
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Much of this air is the mixture that you breathed in but it is higher in carbon dioxide. This gas is produced by your cells as they used the oxygen that you breathed in to make energy.
Air that's been in your lungs and gotten breathed out.
It goes down the trachea, through the bronichi and bronchioles, and into the alveoli. There, some of the oxygen in the air that you breathed in is accepted by red blood cells. The rest is breathed out.
The speed of breathing air is not fixed. It depends on the size of the hole being breathed through and the pressure difference between the lungs and the atmosphere.
If you 'inhaled' something, you breathed it in. If you 'exhaled' something, you breathed it out