If the person can cough and breathe, then they can be able to cough, and it should be encouraged since it can help dislodge the food. If it does get stuck or the person cannot breathe or speak to begin with then use the Heimlich Maneuver.
Because simple carbs are things with lots of fats such as your fried foods, your gressy foods, and junk foods. But complex carbs are your veggies and fruits and lean protiens like fish or chicken so its not as bad for you.
Because its air we cant see it thats why its clear because it would be scary if we were able to see air! :)
Styrofoam is poisonous when burned and it takes thousands of years to decompose card bord is biodegradable and probably won't give you cancer if u accidently eat some