Air is passed from the trachea into the lungs through two large tubes called: alveoli bronchi pharynx larynx

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.

Depression is lifelong, though you can get medication to with it. the difference between sadness and depression is that sadness lasts a little bit, depression last a long time and it goes on and off. people usually get depression through experiences they have been through, or genetics.

Think it's rice because in many countries rice is the main food so it can be traditionally served all at once.