They are electromagnetic waves because mechanical waves have to be physically created by something, while electromagnetic waves are just emitted without any effort or force.
They are both on the end of the Pacific rim. They both have an above average number of volcanoes, and they are steeper and more narrow then other mountain ranges. This is a result of their both straddling and colliding continental plates and being on top of very active geological fault lines.
Yes it is answer A. (At least 20 characters long)
Answer:
A counterculture is composed of a group of people who are systematically opposed to the dominant culture.
