If the skateboarder falls off the skateboard, what can we say about the force of motion in comparison to static friction by the person

Alinear relationship would look like a straight line on the graph. it could have a positive negative or 0 slope. so it could be a line potentially going in any direction but it must be perfectly straight.

Magma  is composed of molten rock and is  stored  in the earth's crust. lava is  magma  that reaches the surface of our planet through a volcano vent.

Answerigneous bedrock of the oceanic crust;

It would be c hope this out