Filtering the homogeneous mixture to get the materials out and boil away any water
Answer:
★The second law of refraction
The ratio of sine of angle of incidence to the sine of angle of refraction is a constant for a light of given colour and for a given pair of media. This law is also called Snell's law of refraction. If 'i' is the angle of incidence and 'r' is the angle of refraction then, Sin i/Sin r = constant
This constant value is called the refractive index of the second medium with respect to the first.
The dependent variable is the slime on Gary's shell, because it's depending on other factors (independent factors).
At point C because it is at the lowest position.