Its random, with no sense of meaning to it. Besides a person just typing things
Answer:
It causes light to slow down significantly
Explanation:
The index of refraction of a substance describes the speed of light in that substance, as a ratio of the speed of light in vacuum to its speed in that substance.
just search it up and there is your answer
Answer:
Because you can freeze the water you melted back into a ice cube.
Explanation:
