A high gradient in air temperature and pressure can cause a jet stream, characterized by high-speed winds. Through which marked regions would jet streams pass?

answer; /// i believe the correct answer is (reactants);

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.