<P> Waves exhibit common behaviors under a number of standard situations, e.g. </P> <P> Waves normally move in a straight line (i.e. rectilinearly) through a transmission medium . Such media can be classified into one or more of the following categories: </P> <Ul> <Li> A bounded medium if it is finite in extent, otherwise an unbounded medium </Li> <Li> A linear medium if the amplitudes of different waves at any particular point in the medium can be added </Li> <Li> A uniform medium or homogeneous medium if its physical properties are unchanged at different locations in space </Li> <Li> An anisotropic medium if one or more of its physical properties differ in one or more directions </Li> <Li> An isotropic medium if its physical properties are the same in all directions </Li> </Ul> <Li> A bounded medium if it is finite in extent, otherwise an unbounded medium </Li>

Which of the following are properties of classical waves