4. What is/are one source of mineral deposits on the seafloor? O A. Seafloor spreading
B. Coral reefs
C. Lagoons
D. Volcanic vents

i thinking chemical change

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.

the correct answer in apex is tissue development, i know because i just had this question