Volcanic eruptions are caused primarily by the movement of

1 rock by erosion
2 Earth in its orbit
3 tectonic plates
4 planetary winds

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?

Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?

Which of the the following are examples of projectile motion of both projectile motion and two dimensional motion