1.
3.2.2 quiz: matter and energy
question 1 of 10
2 points
which statement best describes the law of conservation of energy?
o
a. energy can change forms but cannot be created or destroyed.
o
b. energy can be destroyed but not created.
c. the total energy in an open system can only decrease.
d. energy can be created but not destroyed.

A

Explanation:

Energy cannot be created nor destroyed.

A

Explanation:

Energy can change to other form, but cannot be destroy or created

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.