Given a scientific question, generate a correct answer to it.

[Q]: What rises through solid rocks where conditions are right?
[A]: magma

[Q]: Differences in density between water and air lead to differences in what?
[A]: pressure

[Q]: The human skeleton is an endoskeleton that consists of 206 bones in the adult. it has five main functions: providing support to the body, storing minerals and lipids, producing blood cells, protecting internal organs, and this?
[A]:
allowing movement