If an earthquake occurs at Point X, which best explains the direction in which the earthquake waves will spread?

answer; i believe the correct answer to the above question is ( friction)

the electromagnetic energy from the sun arrives in the form of visible and invisible light.

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.

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it