What is refraction?
a. the absorption of light rays as they pass from a substance, such as air, to another substance, such
as a mineral
b. the disappearance of light rays as they pass from a substance, such as air, to another substance,
such as a mineral
c. the bending of light rays as they pass from a substance, such as air, to another substance, such as
a mineral
d. the straightening of light rays as they pass from a substance, such as rock, to another substance,
such as a soil