1 and 2 I believe, picking 3 and 4 is a no no
Because of it's positive effects on all the body's systems.
1.) Nose
2.) Mouth
3.) Larynx
4.) Lung
5.) Right Bronchus
6.) Diaphragm
7.) Pharynx
8.) Trachea
9.) Left Bronchus
10.) Bronchiole
11.) Alveoli
12.) Throat
Answer:
a chemical process in which substances act mutually on each other and are changed into different substances, or one substance changes into other substances.
