Answer:
it travels at a different refractive index.
Explanation:
for example when light travels into water, it slows down, causing it to continue to travel at a different or another angle or direction. hope this helped!
Phases of matter change by gaining or losing energy. Heat decides the state of matter. ... Liquid ----> Solid This is called freezing process ( liquid needs to be cooled off, example freezing of water, liquid on losing heat to surroundings cools off to form solid. Hopefully this helps. Plze mark me brainiest:)
Answer:
It's from crude oil which is black and costly to obtain