James took two pea plants, placing one in a dark closet and the other on a sunny window sill. both are located in air conditioned rooms. he then measured the growth of the pea plants after a week. in this experiment sunlight is a(n)

a. independent variable

b. constant

c. dependent variable

d. control

C. Dependent variable  without the sunlight he could not preform his experiment because if he where to put both in the sunlight the sunlight would then become control but it could never become independent

Yes i think so not 100 percent sure though

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.