C
Because in my opinion they do bending of a light wave as it passes at an angle from one medium to another.
True because friction happens when two things are rubbed against each other and it creates force and sliding something vigorously against something else can create force.
Answer:
compressions; rarefactions
Explanation:
You draw 3 circles around the stations with the size of the circle equal to the distance from the earthquake. Then you simply find where the edge circles all overlap.
