If a magnetic substance is kept in a magnetic field,then which of the following is thrown out?

The variation of the intensity of magnetisation $(I)$ with respect to the magnetising field $(H)$ in a diamagnetic substance is well described by the graph

Relative permittivity and permeability of a material are $\varepsilon_r$ and $\mu_r$ respectively. Which of the following values of these quantities are allowed for a diamagnetic material?

From a molecular viewpoint,discuss the temperature dependence of susceptibility for diamagnetism,paramagnetism,and ferromagnetism.

For a paramagnetic substance, the magnetic susceptibility is

Which of the following is desirable for making permanent magnets?