The more energy needed, the higher the melting point or boiling point . As metals are giant lattice structures, the number of electrostatic forces to be broken is extremely large, and so metals have high melting and boiling points.
i would go with true.
No. all lipids r semi-solid, like room temp. butter..
I don’t know sorry but you can search on google or safari and see for icivics and it would help you