DID I SAY U COULD BREATH

1. How does your vital capacity compare to others in the class? Describe some reasons why you think your vital capacity is what it is. Why are the highest and lowest vital capacities the way they are?
My vital capacity is 3.2 litres. It is above average, but most other girls in the class got around the same.
I believe my vital capacity is the way that it is because i have a larger frame than other girls, and so I am able to breathe out more air. I have also been exercising more! YAAAAAY.
The highest vital capacity was 5 litres. The lowest was 1.6 litres. The highest vital capacity was high because the person was male. The lowest was female. I believe males are able to breathe out more air because they are bigger than females, and have stronger muscles.

2. How much air is in a usual breath? Why are our breaths the volume that they are?
In a usual breath, there is approximately 2 litres of air for girls, and 4 litres of air for boys.
I believe that girls generally have a smaller build and frame than boys, therefore most girls cannot intake as much air as boys. - idea credit: Tasha LOLOLOLOLS.
Our breaths are the volume that they are because idk cause our lung capacity and thoracic cavity can only intake so much. Also our diaphragm and intercostal muscles are not as strong as males to contract and inhale/exhale the air.

3. How is the mechanism of exhaling forcefully different than a usual exhalation? Why would you practice at this via exercise/instrument playing/singing make you better at it?
The mechanism of inhaling forcefully is different than a usual exhalation because when we naturally exhale, we do not think about it. When forcefully exhaling, we voluntarily make our muscles expand to release the air.
To become better at forceful exhalation, exercising, instrument playing, and singing could help because you need to take large breaths and release large breaths while doing these actions. While exercising, playing an instrument, and singing, we need to be able to breathe efficiently, and this helps in singing and holding/playing a note longer.