5mins what is the similarity between relative dating and radioactive dating?
a. both study the decay of atomic particles
b. they both determine the exact age of rocks
c. both are used to determine the age of objects.
d. they both provide a range of years of an object

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.