For a tragedy of the commons to occur a resource must be scarce, rivalrous in consumption, and non-excludable. Solutions to the tragedy of the commons include the imposition of private property rights, government regulation, or the development of a collective action arrangement.
Substances can change state, usually when they are heated or cooled. For example, liquid water turns into steam when it is heated enough, and it turns into ice when it is cooled enough. ... The closeness, arrangement and motion of the particles in a substance change when it changes state.
False the ability to conduct heat is a physical property
