11. Describe what is happening at places 1, 2 and 3 in the diagram.

sunlight and water

explanation:

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.

i dont know it at allnow im just getting points at this pint

silt loam

hope this