What causes the lungs to fill with air?

Which of these tents to result in obesity ?

The ability of a muscle to exert force is:

(intro to ag on odyssey ware) which of the following describes the third step to recycling ammonia for use as a fertilizer? gather wastewater from livestock apply recycled ammonia to plants extract the ammonia from wastewater mix ammonia to create ammonium nitrate (legit answer only hurry on test now)