Which of the following is a characteristic of a mixture? a. it has varying properties. b. it has a fixed composition. c. it only contains pure substances. d. it has both varying properties and a fixed composition?

The answer is A: It has varying properties.

Explanation:

Quiz said it was correct

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).

answer; equivalent to a one(1) horsepower motor;