help me with this give me an answer I don't know how to solve it please Calculating the speed of light in a medium: What is the speed of light in a rectangular prism if its index of refreaction is 1.5? Given: speed of light in a vacuum v = 3.00 x 108 m/s Index of refraction of ethyl alcohol n = 1.5 Required: Find the speed of light in the prism. Analysis and Solution:

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

plz give brainliest

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

i think it's letter a.