Which is not part of the lifting process?
1. get close to the object
2. bend your knees
3. lift straight up
4. bend at the waist
5. get a good grip

4.
you want to lit with your knees not your waist/back cause you'll strain your back

Did you try looking it up?

Air goes past the epiglottis and into the trachea when you breathe in. from there, it goes to your vocal cords in the larynx until it reaches the bronchi. from the bronchi, air passes into each lung.