c. X-Ray radiation is: (i) (ii) (iii) (iv) Radiation in the radio-frequency range? Fast moving electrons? Radiation in the visible range of the electromagnetic spectroscopy? None of the above. d. As the bonding energy increases, melting point of the material: (i) Decreases Increases (ii) (iii) (iv) Does not change Will only change depending on other conditions e. Preparing sample for metallographic observation includes the following steps (order matters) (i) Cutting, polishing, grinding, mounting (molding), etching (ii) Mounting (molding), cutting, grinding, polishing, etching (iii) Cutting, mounting (molding), etching, polishing, grinding (iv) Cutting, mounting (molding), grinding, polishing, etching