Look at the chemical equation for this reaction again.
what are the reactants?
what are the products?

You haven't included a reaction so I can't tell you exactly what the answer is.

However, in general terms, the reactants are on the left side of the chemical equation (they're the things that react) and the products are on the right side of the equation (they're the things that are produced).

i wish i could with all of them i can barley see the first one so here's the answer to the first one b

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.