To balance your weight gain diet, you should
a. eat as much as you can.
b. concentrate on dairy products.
c. consume as many fat grams as possible.
d. follow a pumped-up version of fundamental guidelines for healthy eating.

As light moves from one material into the next, which of the following affects how much the light waves will refract, or bend? angle at which the ray strikes the medium color of the material density of the material temperature of the light wave