When fast water passes it leave
It increases.
it slows down.
It happens by the refraction of light.
The water will look like a rainbow. that's what happens when it rains
slowdown
Water is dissociated in hydrogen and oxygen.
When food passes through the colon, water is absorbed to transform the food waste into feces.
sun light bends
it stay at the surface
The light will bend as it passes through.
Carbon dioxide turns lime water milky.
It slows from c to c/n where n is the refractive index of water