Answer:
please add more info into your response
Explanation:
Refraction is the bending of light (it also happens with sound, water and other waves) as it passes from one transparent substance into another. This bending by refraction makes it possible for us to have lenses, magnifying glasses, prisms and rainbows. Even our eyes depend upon this bending of light. Hope this helps!
Plate tectonics are the broken plates of earth that move around and form the different plate boundaries
D. amu
amu stands for atomic mass unit
The answer Is B;A chemical bond holds atoms together.
