The surface of the sun is at a temperature of about 5800 K. Suppose that the sun were the same size, but it had a temperature of 7000 K of 5800 K. Use the graph of Planck’s law to predict the ways that the sun’s light would be different.

No. an alpha particle is a pair of protons and a pair of neutrons, i.e. a helium

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.