Answer:
False
Explanation:
It is psychological for you do not depend on it to live.
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
Because it is a mix of H2O (water) and NaCl (salt)