Lack of sunlight will directly affect the formation of

Vitamin D3

Explanation:

Bone resorption is a process whereby bone matrix is destroyed by substances released by osteoclasts.

Bone resorption may occur when blood calcium levels are low.

cuz he's blad

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.